If 120% of a is equal to 80% of b, then what is the value of a b in terms of b

Given the graphed function below which of the following orders pairs are found on the inverse function

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?

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)