character: Mr. Thompson
topic: Understanding Marginal Cost
grade: 11
subject: Economics
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character: Ms. Johnson
topic: The Importance of Opportunity Cost
grade: 11
subject: Economics
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character: Dr. Smith
topic: Supply and Demand Fundamentals
grade: 11
subject: Economics
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character: Mr. Lee
topic: Examining Fixed vs. Variable Costs
grade: 11
subject: Economics
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