Darnell's family can contribute 60% of the total annual expenses befor financial aid and Darnell estimates that he will qualify for $6,000 in scholarships and grants for his first year how much does that leave for Darrnell to cover for his first year of college​

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.