The word "commission" has 9 letters in total.
To find the number of possible arrangements, we can use the formula for permutations of a set of items:
n! / (n1! * n2! * n3! * ...)
where n is the total number of items and n1, n2, n3, etc. are the number of times each item is repeated.
In the word "commission", we have:
- 1x 'c'
- 2x 'i'
- 2x 'm'
- 2x 's'
- 1x 'o'
- 1x 'n'
Therefore, the total number of arrangements is:
9! / (1! * 2! * 2! * 2! * 1! * 1!)
= 362,880 / (1 * 2 * 2 * 2 * 1 * 1)
= 362,880 / 8
= 45,360
Therefore, there are 45,360 different letter arrangements possible using all the letters of the word "commission".