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luke put 2 red pens, 7 blue pens, and 1 black pen in a bag, closed it and shook it up. if the pens are the same size, weight and texture, what is the probally of choosing a red pen? a red or black pen? what is the probability of not choosing a blue pen? if luke does choose a blue pen, but gives it away, what is the probability he will choose another blue pen? i need help asap it is due tommrow

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