I need help with question 18 on my test.

18.) Find m

Aregression was run to determine if there is a relationship between hours of tv watched per day (x) and number of situps a person can do (y). the results of the regression were: y=ax+b a=-0.662 b=30.418 r2=0.703921 r=-0.839

The parabola opens: y=√x-4 (principal square root) up down right left

If angle 2=3x +1 and angle 3=2x +4what is angle 2