4.9 can be rounded to 5 easily and this might just be me but 0.5 is a really easy number to work with and rounding it up to 1 will change the problem greatly. This is easy mental math, 5/0.5 is equal to 5x2 which is 10
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)