Answer:
The correct answer is -21.
Explanation:
To solve this problem, we must plug in -6 for each x in the function.
This is modeled below:
g(x) = 3x - 3
g(-6) = 3(-6) - 3
Now, we must simplify by first multiplying and then adding the remaining terms together.
g(-6) = -18 - 3
g(-6) = -21
Therefore, the correct answer is -21.
Hope this helps!