Answer:
C. 9
Step-by-step explanation:
The measure of a triangle is 180.
Make all the angles equal 180.
50+80+6x-4=180.
Solve.
6x=54
x=9
Go ahead and do your own work buddy that’s how you learn shisjdjdhdifndkdnebe
The domain? I think I’m not sure.
9(5)+8=53
All you have to do is plug 5 in for x
60 miles because if you plug it in, it says she uses 2 gallons of gas. You can substitutes D=30(2), which comes out to 60