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A bag contains 9 marbles: 5 are green, 2 are red, and 2 are blue. David chooses a marble at random,

A bag contains 9 marbles: 5 are green, 2 are red, and 2 are blue.
David chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that the first marble is green and the second
is red? Write your answer as a fraction in simplest form.

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