6. Permutations
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Since the pitcher should be the last one to bat, we arrange the order of the first batters from 9-1=8 players.
C
There are 9 players that should bat and the pitcher is supposed to be the last one. Therefore, we arrange the other batters from 8 players. We have 8 choices for the first batter, 8-1= 7 choices for the second batter, and so on.
| First Batter | Second Batter | Last Batter |
|---|---|---|
| 8 | 8-1= 7 | 8-7=1 |