Answer:
5x-6
Step-by-step explanation:
f(x) = 2x + 3
g(x) = 3x - 9
f(x) + g(x) = 2x + 3 + 3x-9
= 5x-6
167,000
47000 plus 3000 mutipled by 40 gives you your answer
21.41667
6 2/3 + 4 + 10 3/4 = 21.41667
The last option
You take the middle 2 numbers, add them up, and divide by 2.