If f(x) = x^2 - 2x and g(x) = 6x + 4, for which value of x does (f+g)(x) = 0?
•-4
•-2
•2
•4

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