What is the inverse function of:

f(x)=2x+2

With step by step explanation please.

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

Can someone explain to me how to do

How do i i solve this equation? -18 = x/3 + 3