Rob changes his car every year and prefers a car that is always under warranty

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.

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i