Find a common denominator between 12 and 9
it would be 36
9*4=36
12*3=36
1*3=3
7*4=28
3/36 + 28/36 = 31/36
The answer for g(3) is 12
F(x) would be that x is -2
Answer:

Step-by-step explanation:
Use cosine ratio.
3 1/5. You add the whole numbers together