Answer
30
Work Step by Step
Use the formula of permutation: $_{n}$P$_{r}$=$\frac{n!}{(n-r)!}$. Plug in 6 for N and 2 for R:
$_{n}$P$_{r}$=$\frac{n!}{(n-r)!}$
$_{6}$P$_{2}$=$\frac{6!}{(6-2)!}$ -simplify-
$_{6}$P$_{2}$=$\frac{6!}{4!}$ -write using factorial-
$_{6}$P$_{2}$=$\frac{6*5*4*3*2*1}{4*3*2*1}$ -simplify-
$_{6}$P$_{2}$=30
