The expression 3(x-9) is equivalent to

a 3(x)+9
b 3(x)+3(9)
c 3(x)-9
d 3(x)-3(9)

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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