I need help with this, Please explain to me this.

Regular price is $77.00 and the discount is 5% find the sale price

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

In a school 2/3 of the students study a language of those who study a language 2/5 study french