

1. 
In how many ways can 8 CDs be stacked? 


A. 
9216 
B. 
288 


C. 
40,320 
D. 
36 


Hint 


2. 
Compute 5! 


A. 
60 
B. 
15 


C. 
720 
D. 
120 


Hint 


3. 
Meghan owns 5 pairs of basketball shorts. If she wears a different pair every day for five days, how many different orders are there in which she could wear the shorts? 


A. 
15 
B. 
60 


C. 
120 
D. 
24 


Hint 


4. 
A baseball team has 15 players, but there are only 9 positions. How many different choices are there for how to put 9 players on the field? 


A. 
99 


B. 
120 


C. 
1,816,214,400 


D. 
1,307,674,368,000 


Hint 


5. 
Evaluate 2! · 7!. 


A. 
5,040 
B. 
14 


C. 
10,080 
D. 
362,880 


Hint 


