Help!? me please help mee​

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

After the seventh month of a 12-month loan: the numerator is: {(n + 11) + (n + 10) + (n + 9) + (n + 8) + (n + 7) + (n + 6) + (n + 5)} = , and the denominator is: {(n) + (n + 1) + + (n + 11)} = . therefore, the fraction is numerator/denominator (to the nearest tenth) = %

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school