Please help woth this

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

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.