SOLUTION: in how many ways can you choose 4 cassettes from the 9 you own?

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Question 195014: in how many ways can you choose 4 cassettes from the 9 you own?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
in how many ways can you choose 4 cassettes from the 9 you own?
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9C4 = (9*8*7*6)/(1*2*3*4)
= 126
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Cheers,
Stan H.