Please answer ASAP thank you. (Pic attached).

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

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount