

1. 
How many ways can 3 CDs be selected from a stack of 7 different CDs? 


A. 
35 
B. 
5040 


C. 
245 
D. 
6 


Hint 


2. 
AllStar Pizza offers a large pizza with any three toppings for $9.95. If you can choose from 13 different toppings, how many different pizzas are possible? 


A. 
78 
B. 
286 


C. 
1287 
D. 
715 


Hint 


3. 
An art gallery has 10 paintings to display. Six of the paintings are to be used for a new exhibit. Is this situation a permutation or combination? How many choices of paintings are possible? 


A. 
permutation; 210 
B. 
combination; 210 


C. 
permutation; 151,200 
D. 
combination; 151,200 


Hint 


4. 
You have an assignment for an art class to paint a painting using only four colors. Visiting an art store, you find 20 colors from which to choose. How many different combinations of colors are there? 


A. 
24 
B. 
4,845 


C. 
116,280 
D. 
74 


Hint 


5. 
While at a local video rental store, 5 movies catch your eye, but you only want to rent 2. How many combinations are there? 


A. 
5 
B. 
10 


C. 
20 
D. 
2 


Hint 


