Whats the slope ?.please help me

Which expression is equivalent to 3^3 + 2^2?

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b