PLEASE HELP ME WITH THIS ALGEBRA QUESTION

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Find the value of x that will make l ll m

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)