Mr. and Mrs. Atoll are planning a party for 10 people and want to make sure they have enough soda for everyone to have two bottles. Which of these makes the most economic sense?

Ten people need 10 × 2 = 20 bottles. Choice D provides 4 × 6 = 24 bottles and costs 4 × $5.00 = $20.00, making it the least expensive option that provides enough soda.

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