math
posted by jean .
a rectangular garden has a length of 9 meters and a width of 7 meters. inside the garden is a square patch of roses. the patch is a square with sides of 4 meters. what is the area of the part of the garden NOT covered by roses?

A = 9*7
A = 63 sq. meters
A = 4^2
A = 16 sq. meters
63  16 = ______ sq. meters