What is the main difference between the authors' conclusions about teens who work?​

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition? a) 6 b) 8 c) 14 d) 20

Rewrite the following without an exponent. (5/8)-1

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?