Question

What does "9!" mean?

Answer 1

Answer: 9 factorial

This mean that you multiply 9 by itself and all whole number less than it.

9x8x7x6x5x4x3x2x1

Answer 2

see below

Explanation:

! means take the number and multiply by all the numbers below it down to 1

9! = 9*8*7*6*5*4*3*2*1