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Anonymous
The formula is (n-1)!. So, for 7 people it is 6! or 720.
Wiki User
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There are 12 ways.
There are 24 ways to arrange 4 people in a row.
8x7x6x5x4= 6720
4*3*2*1 = 24 ways.
15! - 2! x 14! = 1133317785600 ways