Can someone me with these 3 math questions. i need quick and fast. only comment if you are ! answer all

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)

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.