3x+y=-8
-2x-y=6

Find X and Y By Substituting

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

How do i take any fraction and make it into a decimal or percentage?

The price for gasoline is represented by the equation y=3.69x, where y represents the total price for x gallons of gasoline. on a graph, the number of gallons is represented on the horizontal axis, and the total price is represented on the vertical axis. determine whether each statement describes the graph of the equation. select true or false for each statement