What is 2x - y=4 x - y = 1

Solve for x, y, and z. show all steps.

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

What is the product? a-3/15a × 5/a-3