Evaluate each of the following expressions, giving the answer in scientific notion 5.3 x 10^4 + 4.7 x 10^4
3.7 x 10^4 - 3.3 x 10^6
4.8 x 10^-3 + 6.3 x 10^-2
6.6 x 10^-5 - -6.1 x 10^-4

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)