The coach writes the batting order on a piece of paper. How many different ways could the list be wr

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The coach writes the batting order on a piece of paper. How many different ways could the list be written?

We have 9 people in a line up. The total lineups are shown by:
9 * 8 * 7 * ... * 2 * 1

Or, 9!. Typing 9! in our search engine and we get 362,880