Identify the roots of the function g(x) = x^2 - 8x + 16

A function doesn't have roots until you give it a numerical value.
Then, the roots are the values of the variable that give the function
that value.

For example, if you said that  g(x) = 0,
then the roots would both be  x = 4 .

But if you said that  g(x)=16, then
the roots would be  x=0  and  x=8 .

$22. if larry's profit were to minimize by one for every hour his store were to be closed, we would subtract 30 by 8.