A bag of marbles had 42 black marbles and the rest were green. For a game, 40 marbles were chosen from the bag. Of these 40 marbles chosen, 45 were black.

Use this information to answer the questions below.

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(a) How many of the bag's green marbles were not chosen?

(b) How many of the bag's marbles were not chosen?

(c) How many of the bag's green marbles were chosen?