14523 round to nearest 10

Use the distributive law to multiply. 3(4x + 5y + 6)

We just started the introduction into circles and i have no idea how to do this.

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)