The width of a rectangle measures (10p-9q) centimeters and its length measures (7p+8q) centimeters

Which expression represents the perimeter in centimeters of the rectangle

The perimeter of a rectangle is given by the formula: P = 2(length + width).

In this case, the length is (7p + 8q) centimeters and the width is (10p - 9q) centimeters.

So, the expression for the perimeter is:

P = 2((7p + 8q) + (10p - 9q))
= 2(7p + 8q + 10p - 9q)
= 2(17p - q)
= 34p - 2q.