1) what is the Length and the Width

Question

The perimeter of a rectangle is 104 inches. The width of the rectangle is 12 inches less than the length of the rectangle. Find the dimensions of the rectangle.

Answer 1

Let L = length, W = width and P = Perimeter

W = L - 12

P = 2(L + W) = 104

L + W = 52

Substitute

L + L - 12 = 52

You finish it from here.