What are two possible factors for the product of 1600

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

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