Which of the following represents ninth root of x to the seventh power in exponential form?

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Witch represents the inverse of the function f(x)=1/4x-12

Which table shows a proportional relationship between miles traveled and gas used?