The function f(x) = 4x + 4 is one-to-one. (a) Find the inverse of f.
(b) Graph f, f-1, and y=x on the same set of axes.
(a) What is the inverse of f?
(Simplify your answer. Use integers or fractions for any numbers in the expression.)

Can someone answer this question? : )

You went to a restaurant and spent $53.25 on the meal. there was a 6% sales tax. what was the amount of money, not including a tip, you spent at the restaurant?

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?