If MC = Q/15 represents marginal cost for a monopolist and market demand is given by Qd = 500 - 10P, the equation for marginal revenue is:

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

In 2005 and 2006, because of fears of inflation, the Fed:

a. increased interest rates which lead to higher monthly payments on fixed rate mortgages b. increased interest rates which lead to higher monthly payments on adjustable rate mortgages. c. decreased interest rates which lead to higher monthly payments on fixed rate mortgages. d. decreased interest rates which lead to higher monthly payments on adjustable rate mortgages.