While Waiting in Line to Buy Two Tacos at 80

question 74

Multiple Choice

While waiting in line to buy two tacos at 80 cents each and a medium drink for 90 cents, Kayla notices that the restaurant has a value meal containing three tacos and a medium drink all for $3. For Kayla, the marginal cost of the third taco would be

• A) zero.
• B) 50 cents.
• C) 80 cents.
• D) $1.

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