Refer to the below table and information. What is the marginal revenue product of the fifth worker?

Expectations that the price level will decrease in the future will _____

a. make the current consumption function flatter b. shift the current consumption function downward c. result in an upward movement along the current consumption function d. result in a downward movement along the current consumption function e. make the current consumption function steeper

If aggregate spending in an economy can be written as Y = 15,000 + 0.6Y - 20,000r, and potential output equals 36,000, what real interest rate must the Federal Reserve set to bring the economy to full employment?

A. 4 percent B. 5 percent C. 2 percent D. 3 percent