Which statement explains how you could use coordinate geometry to prove that quadrilateral ABCD is a parallelogram? Prove that all sides are congruent and have slopes that are opposite reciprocals.

Prove that segments AD and AB are congruent and parallel.

Prove that opposite sides are congruent and have equal slopes.

Prove that segments BC and CD are congruent and parallel.

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.