Given the following system, what is the best first step to solving by substitution? 4x-5y=-2 X=15-4y

Reflect the point (7,0) across the y-axis

Iwill give brainliest. suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?

Which of the following circles have their centers in the third quadrant? check all that apply.