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

3

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

(If necessary, consult a list of formulas.)