The figure shows a square of side y units divided into a square of side x units and four congruent rectangles. What is the perimeter, in units, of one of the four congruent rectangles? Express your answer in terms of y.
Perimeter = width + length + width + length. I just gave you what width + length equals.
Ew its a cheater and the guest helped the cheater. I shall not touch this peasantry.