I need help with this I've been trying to solve it for over half an hour.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)