math
posted by Dee .
a rectangular swimming pool 20 feet long and 10 feet wide,is enclosed by a wooden deck that is 3 feet wide. What is the area of the deck? How much fence is required to enclose the deck?

A = (20 + 2*3)*(10 + 2*3)  20 * 10
P = 2 * (20 + 10 + 4*3)