2x-5y=4
-10x-10y=-20
System by elimination

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers