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10 cards from this deck
An order-specific arrangement of objects.
The formula is n! / (n - r)! for r selections.
5! = 120 arrangements.
In permutations, order counts; in combinations, it doesn't.
Calculate 3! = 6 arrangements.
Permutations with specific conditions or limitations.
Treat OO as one unit: 3! = 6, then 6 x 2! = 12.
Use (n-1)! for circular arrangements.
Use n! divided by the factorials of repeats.
Calculate using 10P3 = 720 arrangements.
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