Your friend has a hill in their backyard that needs to be cut in half for a retaining wall. They want the retaining wall to extend from the hillside 2 feet, so they can plant a garden using the upper space. They want this garden to be at a height of 2 feet. The hill is 3 feet tall at the top, and the sloping distance of the hillside from the top to the bottom is 5 feet. The width of the fence line is 100 feet. The fence line is 62 feet from the back of the house. There are two types of brick to choose from. Brick A measures 12 x 2 x 3 inches and costs $1.29 per brick. Brick B measures 12 x 2 x 6 and costs $2.38 per brick