What does the whole problem spell

Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 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

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?