Need with 18- 23 . i tried doing them but come up with different answers not on the paper

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?