Question

Help?
The width of a rectangle is 7 less than its length. If the area of the rectangle is 198, find the perimeter of the rectangle.
A 29
B 30
C 58
D 86

Answer 1

A = l * w
w = l - 7
A = l*(l-7)
198 = l²-7l
Solve for l, and then find w.

P = 2l + 2w

Answer 2

Thanks!