Serena is the manager of the coffee shop. the amount of money she earns is represented by the equation m = 20 1h, where h is the number of hours serena works, and m is the amount of money she earns. how much more money does serena make an hour then gabe? explain your thinking

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.