3. at the mall, leona bought a t-shirt, a water, and a book for a total of $32. the book cost $12. the water cost $4. how much did the t-shirt cost? (a) what question are we trying to answer? (b) let x represent the unknown information. write an addition equation that models the problem. (c) solve the equation for x.

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?