Is a x a x a x a x a equivalent to 5 x a

Find the solution of this system of equation -7x+y=-20 9x-3y=36

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.

Afigure is rotated 180°. if one of the points on the image is g'(4, -8), what were the coordinates of g? (8,4) (8,-4) (4,8) (4,8)