Answer:

Step-by-step explanation:
The given function is

To find k(-5), we put x=-5 into the given function to get;

Multiply out to obtain;

This is the same as;

This simplifies to

Answer:
13
Step-by-step explanation:
f(x) = x/2 +8
f(10) = 10/2 +8
f(10) = 5+8
f(10) = 13
When you are multiplying exponents with the same base, add the degrees.

The best answer i do believe is b