They equal to 180 because they are supplementary angles
Answer:
x=8
Step-by-step explanation:
3(x-5)=9
3x-15=9
3x-15+15=9+15
3x=24
x=8
Use the equation 459/x=85/100. then you cross multiply 459 and 100 to get 45900. after that you divide 45900 by 85 to get x=540
Https://photomath.net/s/rRVj6K
Reflex angle.
hope this helped!