Multiple Choice
For questions 1–2, simplify each expression.
9!
A. 45
B. 362,880
C. 265,456
D. 125,936
The answer is B. 362,880.
9! means 9 factorial, which is calculated by multiplying 9 by all the positive integers less than 9 (9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1).
9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 362,880.