The men's dress shirt department had net sales of $200000 for the month of April. The opening cost inventory was $95000. Freight were $2200. The department had workroom charges of $1750. The closing cost inventory was $450000. There was a 6% cash discount.

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.