Cathy is moving to a new office building at work, and she has to move her files. Her new office is 32,420 meters from her old office. a) How many kilometers is the new office from the old office? b) If she has to make three round-trips to move all of her files, how many miles has she traveled altogether?​

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.