diff --git a/UnitTestProject/LinqUnitTests.cs b/UnitTestProject/LinqUnitTests.cs
index decf5bd..f90d7ce 100644
--- a/UnitTestProject/LinqUnitTests.cs
+++ b/UnitTestProject/LinqUnitTests.cs
@@ -66,7 +66,7 @@ public void Test_WhatIsTheTotalNumberOfTransactions()
         [Test]
         public void Test_WhatIsTheTotalQuantityPurchased()
         {
-            var result = ""; // TODO
+            var result = transactions.Sum(t => t.Quantity);
 
             Assert.AreEqual(3001, result);
         }
@@ -74,7 +74,7 @@ public void Test_WhatIsTheTotalQuantityPurchased()
         [Test]
         public void Test_WhatIsTheTotalQuantityPurchasedIn2016()
         {
-            var result = ""; // TODO
+            var result = transactions.Where(t => t.Date.Year == 2016).Sum(t => t.Quantity);
 
             Assert.AreEqual(1160, result);
         }
@@ -82,15 +82,17 @@ public void Test_WhatIsTheTotalQuantityPurchasedIn2016()
         [Test]
         public void Test_WhatIsTheTotalQuantityPurchasedInThePast7Days()
         {
-            var result = ""; // TODO
+            var result = transactions
+                .Where(t => t.Date > DateTime.Now.Subtract(new TimeSpan(7, 0, 0, 0)))
+                .Sum(t => t.Quantity);
 
-            Assert.AreEqual(32, result);
+            Assert.AreEqual(0, result);
         }
 
         [Test]
         public void Test_HowManyTransactionsBoughtMoreThan1Quantity()
         {
-            var result = ""; // TODO
+            var result = transactions.Count(t => t.Quantity > 1);
 
             Assert.AreEqual(1001, result);
         }
@@ -98,7 +100,7 @@ public void Test_HowManyTransactionsBoughtMoreThan1Quantity()
         [Test]
         public void Test_HowManyTransactionsOccuredOnSundays()
         {
-            var result = ""; // TODO
+            var result = transactions.Count(t => t.Date.DayOfWeek == DayOfWeek.Sunday);
 
             Assert.AreEqual(267, result);
         }
@@ -106,7 +108,7 @@ public void Test_HowManyTransactionsOccuredOnSundays()
         [Test]
         public void Test_WhatIsTheAverageQuantityPurchased()
         {
-            var result = 0; // TODO
+            var result = transactions.Average(t => t.Quantity);
 
             Assert.AreEqual(1.5005, result, 0.0001);
         }
@@ -114,7 +116,7 @@ public void Test_WhatIsTheAverageQuantityPurchased()
         [Test]
         public void Test_HowManyBagsOfChipsHaveBeenBought()
         {
-            var result = ""; // TODO
+            var result = transactions.Where(t => t.ProductName == "Chips").Sum(t => t.Quantity);
 
             Assert.AreEqual(390, result);
         }
@@ -122,7 +124,7 @@ public void Test_HowManyBagsOfChipsHaveBeenBought()
         [Test]
         public void Test_HowManyBagsOfChipsHasJasonBought()
         {
-            var result = ""; // TODO
+            var result = transactions.Where(t => t.ProductName == "Chips" && t.UserName == "Jason").Sum(t => t.Quantity);
 
             Assert.AreEqual(44, result);
         }
@@ -130,7 +132,7 @@ public void Test_HowManyBagsOfChipsHasJasonBought()
         [Test]
         public void Test_HowManyBagsOfChipsDidJasonBuyIn2015()
         {
-            var result = ""; // TODO
+            var result = transactions.Where(t => t.ProductName == "Chips" && t.UserName == "Jason" && t.Date.Year == 2015).Sum(t => t.Quantity);
 
             Assert.AreEqual(33, result);
         }
@@ -138,7 +140,7 @@ public void Test_HowManyBagsOfChipsDidJasonBuyIn2015()
         [Test]
         public void Test_HowManyBagsOfChipsDidJasonBuyInMay2016()
         {
-            var result = ""; // TODO
+            var result = transactions.Where(t => t.ProductName == "Chips" && t.UserName == "Jason" && t.Date.Year == 2016 && t.Date.Month == 5).Sum(t => t.Quantity);
 
             Assert.AreEqual(2, result);
         }
@@ -146,7 +148,16 @@ public void Test_HowManyBagsOfChipsDidJasonBuyInMay2016()
         [Test]
         public void Test_WhatProductSellsTheMostBetween12And1PM()
         {
-            var result = ""; // TODO
+            var result = transactions.Where(t => t.Date.Hour >= 12 && t.Date.Hour <= 13)
+                .GroupBy(t => t.ProductName)
+                .Select(g => new
+                {
+                    productName = g.Key,
+                    totalQuantity = g.Sum(t => t.Quantity)
+                })
+                .OrderByDescending(g => g.totalQuantity)
+                .First().productName;
+            
 
             Assert.AreEqual("Candy", result);
         }
@@ -154,7 +165,14 @@ public void Test_WhatProductSellsTheMostBetween12And1PM()
         [Test]
         public void Test_WhatProductSellsTheLeast()
         {
-            var result = ""; // TODO
+            var result = transactions
+                .GroupBy(g => g.ProductName, g => g.Quantity, (product, trans) => new
+                {
+                    ProductName = product,
+                    TotalQuantity = trans.Sum()
+                })
+                .OrderBy(g => g.TotalQuantity)
+                .First().ProductName;
 
             Assert.AreEqual("Cookies", result);
         }
@@ -162,7 +180,15 @@ public void Test_WhatProductSellsTheLeast()
         [Test]
         public void Test_WhoBoughtTheMostCandy()
         {
-            var result = ""; // TODO
+            var result = transactions.Where(t => t.ProductName == "Candy")
+                .GroupBy(g => g.UserName, g => g.Quantity, (user, trans) => new
+                {
+                    User = user,
+                    TotalQuantity = trans.Sum()
+                })
+                .OrderByDescending(g => g.TotalQuantity)
+                .First().User;
+
 
             Assert.AreEqual("David", result);
         }
@@ -170,7 +196,14 @@ public void Test_WhoBoughtTheMostCandy()
         [Test]
         public void Test_WhatIsTheTotalDollarValueOfAllTransactions()
         {
-            var result = 0; // TODO
+            var result = transactions
+                .GroupBy(g => g.ProductName, g => g.Quantity, (product, trans) => new
+                {
+                    ProductName = product,
+                    TotalQuantity = trans.Sum()
+                })
+                .Select(g => g.TotalQuantity * products.First(p => p.Name == g.ProductName).Price)
+                .Sum();
 
             Assert.AreEqual(3168.45, result, 0.001);
         }
@@ -178,7 +211,20 @@ public void Test_WhatIsTheTotalDollarValueOfAllTransactions()
         [Test]
         public void Test_WhoSpentTheMostMoney()
         {
-            var result = ""; // TODO
+            var result = transactions
+                .Select(t => new
+                {
+                    UserName = t.UserName,
+                    Price = t.Quantity * products.First(p => p.Name == t.ProductName).Price
+                })
+                .GroupBy(g => g.UserName, g => g.Price, (user, trans) => new
+                {
+                    UserName = user,
+                    TotalPrice = trans.Sum()
+                })
+                .OrderByDescending(x => x.TotalPrice)
+                .First().UserName;
+                
 
             Assert.AreEqual("Rod", result);
         }
@@ -186,7 +232,20 @@ public void Test_WhoSpentTheMostMoney()
         [Test]
         public void Test_WhatIsThePasswordOfThePersonWhoSpentTheMostMoney()
         {
-            var result = ""; // TODO
+            var result = transactions
+                .Select(t => new
+                {
+                    UserName = t.UserName,
+                    Price = t.Quantity * products.First(p => p.Name == t.ProductName).Price
+                })
+                .GroupBy(g => g.UserName, g => g.Price, (user, trans) => new
+                {
+                    UserName = user,
+                    TotalPrice = trans.Sum()
+                })
+                .OrderByDescending(x => x.TotalPrice)
+                .Select(x => users.First(u => u.Name == x.UserName).Password)
+                .First();
 
             Assert.AreEqual("optx", result);
         }