2(04.02 LC) Which graph shows a proportional relationship between the number of hours of renting a bicycle and the total amount spent to rent the bicycle?

Can someone show me step by step how to do this?

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat

What are two numbers that have a sum of 15?