need 3 solved

Hello I’m stuck on 3 problems and I’m at work started the test on my lunch break. Please see attached.

A certain committee consists of

9le. From the committee, a president, a vice-president, and a secretary are to be chosen. In how many ways can these


offices be filled? Assume that a committee member can hold at most one of these offices.

(If necessary, consult a list of formulas.)

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