Answer
336
Work Step by Step
n = 8 r = 3
$P(n, r) = \frac{n!}{(n - r)!}$
$P(8, 3) = \frac{8!}{(8 - 3)!} = \frac{8(7)(6)5!}{5!} = 8(7)(6) = 336$
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