Divide. Write your answer as a fraction in simplest form.

9/10÷(−6/5)=

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

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

Icould really use some with this question.