So you want to find how much y=8 and how much x=3 so to do that you multipy 8x3 witch =24 so 8x3=24 ope this helps you.
b= 81 degrees
Explanation:
A straight line is 180 degrees.
180 - 99 = 81
All the angles combined should be equal to 360, forming a circle.
Here is a graph with the equation you gave graphed on it.