Cassie wants to determine the length of the shadow that a 60-foot tall telephone pole casts without measuring it. if cassie's mailbox, which is 42 inches in height, casts a shadow that is 21 inches in length, how long is the shadow that the telephone pole casts?

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?