Y = x - 6
5x - 2y = -30

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.