Here's the question you clicked on:
prettychicka45
if a club has 13 memebers how many different arragments of president, vice president, and secreary are possible
You would have the number of ways to choose 3 from 13: C(13, 3) Then there are 3! ways to arrange them. so C(13,3) * 3! are you familiar with that 'C'ombinatorics function?
also known as the 'Binomial coefficient' \[C(n,r) = \frac{n!}{r! * (n-r)!}\]
can you solve? I get '1716'