I think the answer is "the denominator"
Slope = Y2-Y1/X2-X1 = 7-(-3)/3-(-2)= 10/5 = 2
The Second Choice I think
Triangle= 180 degrees
Angle = 37.5 degrees
Supplement angle = 105 degrees
If you multiply the angle (37.5) by 2 and then add 30, it gives you 105. Then add 37.5 twice to make up the other two angles of the triangle and it gives you 180 total degrees as a triangle should.
