There are 4 pens in a small box of pens.- There are 10 pens in a large box of pens.
Ami buys x small boxes of pens and y large boxes of pens.
She buys a total of T pens.
Write down a formula for T in terms of x and y.

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?