Answer:
s= 15
Step-by-step explanation:
The entire angle equals 180 degrees.
We already know the value of part of the angle, 37 degrees.
So, subtract 37 from 180. You get 143.
Create an equation: 143=9s+8
Subtract 8 from 143. You get 135.
135=9s
135/9=15
So, s=15
