Sandy's daughter has a playhouse in the back yard. She plans to cover the one shaded exterior wall and the two rectangular faces of the roof, also shaded, with a special siding to resist the elements. The siding is sold only in 8-foot by 12-foot sections that cost $\$27.30$ each. If Sandy can cut the siding when she gets home, how many dollars will be the cost of the siding Sandy must purchase?
$ 54.60
The shaded exterior wall is 6*8=48 square feet. One of the roof tops is 5*8=40 square feet, so both will be 80 square feet. 80+48=128. The sliding is 8*12=96 square feet, so we need two pieces. 2*$ 27.30=$ 54.60