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8. A Chinese Pie Stand offers a delicious triangular shaped, chewy, green onion pie. You can also order the pie with any or all of 4 luxurious toppings: heavenly beef, earthly chicken, salty ocean fish, and spicy insanity crazy chili. How many ways can a pie be ordered?

1 Answer

5 votes
15

(beef)
(chicken)
(fish)
(chili)

(beef, chicken)
(beef, fish)
(beef, chili)

(chicken, fish)
(chicken, chili)

(fish, chili)

(beef, chicken, fish)
(beef, fish, chili)
(beef, chicken, chili)
(chicken, fish, chili)

(beef, chicken, fish, chili)
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