Which expression is equivalent to (g*h)(5)?

For this case, we must perform a composition of functions.

Let two functions, f(x) and g(x). To find we calculate , that is, replace g (x) in f (x).

So, if we have:

And we want to find . We make:

if we want the composite function evaluated at 5, we substitute

Option A

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)