What two numbers multiple to -48 & add to -8

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

The constitution gives congress the power to create federal courts lower than the supreme court higher than the supreme court equal to the supreme court, unaffected by the supreme court.