The Pr button, what does it do? I'm not familiar with calculators, at least not the fancy ones. Does it do the formula "n!/r!(n-r)!"? for the second question, I know there is a button to find that, i found out the other day lol. How have you been anyway, I haven't talked to you in a while. maybe I'll email you tomorrow. As for tonight, have a good one lol :)
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Brad
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