What is the constant of proportionality represented on this
graph?

Solve the system of equations. 2x-2y=-4 and x+y=8. show work

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55

What does y equal in y divided by -1 = -2?