What is the average rate of change of the function from x = 2 to x = 6?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour. what is the cyclist average rate for the round trip in miles per hour ?