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Mathematics 16 Online
OpenStudy (anonymous):

Evaluate 7C5.

OpenStudy (amistre64):

7 pick 5, divided by 5!

OpenStudy (amistre64):

7.6.5.4.3 -------- 5.4.3.2 7.6 --- 2 7.3

OpenStudy (amistre64):

looks to be 21 to me

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