Teacher/User Name: DEMO Name:__________________________
Practice Problems Period: ________ Date: ____________

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1) In how many ways can I pick 12 electricians from a pile of 15 electricians?

2) Explain (conceptually) why the following equality holds:
2nC2 = 2(nC2) + n2
3) In how many ways can I pick 7 scarves from a group of 15 scarves?

4) In how many ways can I pick 4 bracelets from a displace case of 14 bracelets?

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