I’m confused on this question

Evaluate the following expression 1/3^2

Acolony contains 1500 bacteria. the population increases at a rate of 115% each hour. if x represents the number of hours elapsed, which function represents the scenario? f(x) = 1500(1.15)" f(x) = 1500(115) f(x) = 1500(2.15) f(x) = 1500(215)

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.