Help it’s for a test. Thx!

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

Aboat's value over time is given as the function f(x) and graphed below. use a(x) = 400(b)x + 0 as the parent function. which graph shows the boat's value increasing at a rate of 25% per year?

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