Pls help No Links pls

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)?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

If g^-1(x) is the inverse of g (x) which statement must be true