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OpenStudy (anonymous):
A restaurant offers 4 kinds of sal- ads, 5 main courses, and 1 dessert. A meal at this restaurant con- sists of a salad, a main course, and possibly a dessert. (Dessert is op- tional.) How many different meals can one order at this restaurant? (A) C (9,2) (B) C(10,3) (C) 10 (D) 20 (E) 40 (F) none of the above
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