diff --git a/week-1/mandatory/2-classes-db/task.md b/week-1/mandatory/2-classes-db/task.md
index 735de6ae..71b8a506 100644
--- a/week-1/mandatory/2-classes-db/task.md
+++ b/week-1/mandatory/2-classes-db/task.md
@@ -19,18 +19,48 @@ If you haven't completed all the exercises from this lesson then do that first.
 
 ### Tasks
 1.  Which rooms have a rate of more than 100.00?
+ SELECT * FROM rooms WHERE rate > 100
+ ;
 2.  List the reservations that have a checkin date this month and are for more than three nights.
+ SELECT * FROM reservations 
+ WHERE (checkIn_date between '2023-01-01'and '2023-01-31') and (checkOut_date - checkIn_date > 3);
+;
 3.  List all customers from cities that begin with the letter 'M'.
-
+SELECT city FROM customers 
+WHERE city LIKE '%M%'
+ ;
 Insert some new data into the room_types and rooms tables, querying after each stage to check the data, as follows:
 
 4.  Make a new room type of PENTHOUSE with a default rate of £185.00
+INSERT INTO room_types (room_type, def_rate) VALUES ('PENTHOUSE', '185')
+  ;
 5.  Add new rooms, 501 and 502 as room type PENTHOUSE and set the room rate of each to the default value (as in the new room type).
+INSERT INTO rooms (room_no, rate, room_type) VALUES ('501','185','PENTHOUSE')
+INSERT INTO rooms (room_no, rate, room_type) VALUES ('502','185','PENTHOUSE')
+  ;
+
+
 6.  Add a new room 503 as a PREMIER PLUS type similar to the other PREMIER PLUS rooms in the hotel but with a room rate of 143.00 to reflect its improved views over the city.
 
+Insert into rooms (room_no,rate, room_type) VALUES ('503','143','PREMIER PLUS')
+;
 Using what you can learn about aggregate functions in the w3schools SQL classes (or other providers), try:
 
 7.  The hotel manager wishes to know how many rooms were occupied any time during the previous month - find that information.
+select count(id) from reservations where (checkIn_date between '2022-12-01'and '2022-12-31');
+
 8.  Get the total number of nights that customers stayed in rooms on the second floor (rooms 201 - 299).
+select sum(checkOut_date -checkIn_date) as total_nights from reservations where room_no between 200 and 299;
 9.  How many invoices are for more than £300.00 and what is their grand total and average amount?
+SELECT SUM(total) from invoices
+WHERE total > 300  
+;
+
 10.  Bonus Question: list the number of nights stay for each floor of the hotel (floor no is the hundreds part of room number, e.g. room **3**12 is on floor **3**)
+    Floor 1- 54 - select sum(checkOut_date -checkIn_date) from reservations where room_no between 100 and 199;
+
+    Floor 2- 63 - select sum(checkOut_date -checkIn_date) from reservations where room_no between 200 and 299;
+
+    Floor 3- 46- select sum(checkOut_date -checkIn_date) from reservations where room_no between 300 and 399;
+
+    Floor 4- 40 - select sum(checkOut_date -checkIn_date) from reservations where room_no between 400 and 499;
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