How many ways are there to arrange 6 unique cd's in order along a shelf?

720 ways

Step-by-step explanation:

We know that the total number of ways to arrange n things in a row in order is given by Permutations.

i.e. The total number of ways to arrange n things in a row= n!

Therefore, the number of ways to arrange 6 unique CD's in order along a shelf will be :

Hence, there are 720 ways to arrange 6 unique CD's in order along a shelf.

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