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Mathematics 16 Online
OpenStudy (anonymous):

How many ways can 10 items be taken seven at a time, if order does not matter?

OpenStudy (amistre64):

10!/7!3! i think

OpenStudy (anonymous):

70

OpenStudy (amistre64):

10.9.8 ------ = 5.3.8 3.2 15.8 = 80+40

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