Can someone help me with this?

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1

For which pair of functions is (gof)(a)=|a|-2?

Evaluate the expression. (9 + 5)(3 + 2)0