24
One... numbers
24 ways
you can arrange three beads 9 different ways.
8
8! = 40320 ways.
4
24
One... numbers
you can arrange 8 pictures 28 different ways
24 ways
you can arrange three beads 9 different ways.
120 ways
7!=5040
8
Only One
There are six, but it is traditional to list them least to greatest,