Answer: s = 12 degrees
Step-by-step explanation:
We know that the sum of angles in a triangle is 180 degrees.
So we can set up an equation to find s given that:
7s + 4s + s + 36 = 180
Combine like terms:
12s + 36 = 180
Subtract 36 from both sides:
12s = 144
Divide both sides by 12:
s = 12
