Answer:
the answer i believe is right angles
3rd option
Step-by-step explanation:
use hypotenuse method
f(x) + g(x) = 3x + 7
f(x) = 2x + 2, g(x) = x + 5
f(x) + g(x) = 2x + 2 +x + 5
f(x) + g(x) = 2x +x + 5 +2
