What is the greatest common factor of 8x and 40y?

8
8xy
320
320xy

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)