1. An arrangement in which order is not important is a(n) ________. A. permutation B. combination C. factorial D. outcome Hint 2. How many ways can 3 CDs be selected from a stack of 7 different CDs? A. 35 B. 5040 C. 245 D. 6 Hint 3. All-Star 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. 715 D. 1287 Hint 4. Which situation is a permutation? A. The number of ways 8 students can finish first, second, or third place at the Math Olympiad. B. The number of ways you can choose 3 hot dog toppings from a total of 5. C. The number of games it would take to start 5 different basketball players from a team of 10. D. The number of ways each person can shake hands with the other 11 people in the room. Hint 5. Which situation is a combination? A. The number of ways 3 books can be displayed in a store window. B. The number of ways a committee can choose a president, vice-president, and treasurer. C. The number of ways 50 people can line up to enter a concert hall. D. The number of ways a coach can choose 3 co-captains for a soccer team. Hint