Final answer:
The question is related to calculating revenue in a mathematical context, implying that if five million records are sold at $10 each, the total revenue would be $50 million.
Step-by-step explanation:
The question, "Moreover, you know that at a price of $10 per record, _________ is five million records," seems to be missing some context but appears to be related to a mathematical concept, likely involving supply and demand, or cost analysis in an economics framework. Unfortunately, the information provided about the 111 people and expensive T-shirts is not directly related to the question about records pricing. We can infer that the blank in the statement is referring to the quantity or the revenue generated from the sale of records. Without additional context, we can't provide a specific numerical answer. However, if we assume that the blank should be filled with 'the revenue generated,' then the statement would imply that selling five million records at $10 each would generate $50 million in revenue.