A swimming pool and deck are built in a rectangle with length 40 ft and width 18 ft. If the pool itself is 320 square feet, what is the area of the deck itself?

Responses
A 400 square feet
B 480 square feet
C 320 square feet
D 560 square feet

The total area of the rectangle (pool and deck combined) is 40 ft x 18 ft = 720 square feet. If the pool is 320 square feet, then the area of the deck is 720 square feet - 320 square feet = 400 square feet.

Answer: A) 400 square feet