Answer:
D. 39
Explanation:
g(x) is equal to 3x - 2, when a number is replaced in "g(x)", this will also replace the x in the equation that g(x) represents.
We have g(8) - g(-5), meaning that we will grab 3x - 2 and replace it with both 8 and -5. Then subtracting both equations.
g(8) = 3(8) - 2
g(8) = 24 - 2
g(8) = 22
g(-5) = 3(-5) - 2
g(-5) = -15 - 2
g(-5) = -17
Now go back to the original equation of g(8) - g(-5) and get our answers to replace both.
22 - (-17)
39