Necesito que me ayuden con unas tareas de matematicas de primer grado de secundaria​

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

What function has a range {yly< 5}? question on picture above^

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?