Answer:I would say A and C.
Step-by-step explanation:Looking at the rectangles they would have to multiply and divide at the same rate, so looking at rectangle A and C, both sides divided by 9 on rectangle A would give you the side lengths to C.
100 divided by 9 is 90.
80 divided by 9 is a few decimals below 72 even though it is not exactly 72.