Mathematics, 21.04.2021 01:10 ELIZABETH7777
HEL In a bag of marbles there are 3 blue marbles, 3 red marbles, and 3 green marbles. You pick three marbles out of a bag one at a time without replacement. How many ways can you pick two green marbles first and one red marble last?
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In a bag of marbles there are 3 blue marbles, 3 red marbles, and 3 green marbles. You pick t...
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