1: 2 + 3a + 9a
2: 7 - 5x + 1

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

What numbers are included in the set of integers? what numbers are not included?

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip