8) Ms. DeCherico has two rectangular structures in her backyard. The dimensions of the pool are 5 feet
by 6 feet. The dimensions of the fire pit are 7 feet by 8 fect. The length of the square backyard is 15
feet. What area of the yard is not covered by the pool and the fire pit?
a) 139 ft.
b) 146 ft.
c) 124 ft.
d) 156 ft.