Kendra bought 162 donuts for $180. Her profit was $30 once she had sold 100 donuts. Which equation below represents Kendra's profit P(n), as a function of the number sold, n? a) P(n)=−1.50n+180
b) P(n)=1.50n−180
c)P(n)=0.30n
d) P(n)=2.10n−180

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.