What is Y - C equal to?

Refer to the scenario above. If the number of participants in the auction increases to 20, Rebecca should place a bid of ________

A) $45,000 B) $42,750 C) $4,500 D) $40,500

________ dictates the lowest wage that firms may pay for labor

A) The black-market wage B) A maximum wage requirement C) A minimum wage law D) A price-ceiling wage