What was the lowest federal funds rate target the Fed set in response to the financial crisis?

Long-term interest rates are an example of

A) an intermediate target. B) an operating target. C) a monetary policy objective. D) a monetary policy tool.

If the marginal revenue product of the fifth worker is $15, the price of the last unit of output produced is $5, and the firm sells as a price searcher, then the marginal product of the fifth worker is

a. 3 units of output b. 45 units of output c. fewer than 3 units of output d. greater than 3 units of output e. greater than 75 units of output