G(x) = 2x^2 and h(x) = .what is (g h)-1 and is it a function?

Plz me plz i will give a brain just plz

Just tell me how to set up the equation.

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old