How many ways can you arrange 5 people for a photo?

Answer 1

I think this is a homework question so I'm giving only the method.

The answer is 5-factorial, expressed as 5!,

where the factorial of a number N is the product of:

N X (N-1) X (N-2) X .... X 1

E.g. 3! = 3 X 2 X 1 = 6.