Nicole is mixing nuts and cereal squares to make 12 pounds of trail mix. Nuts cost $6 a pound, and cereal squares cost $4 a pound. If Nicole wants her cost for the trail mix to be $5 a pound, how many pounds of nuts and how many pounds of cereal squares should she use?

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?