In the diagram below, rstu is a rectangle, and the two shaded regions are squares. if the length of sr is 4m and the length of st is 8m, what is the length of pq in meters?

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.