Based on the above figure of the costs at Barney's Bagel Bakery, at which of the following levels of output does the marginal product of labor equal the average product of labor?

A business entity that produces goods or services is referred to as a(n):

A) market. B) firm. C) government. D) industry.

If the nominal interest rate is 2.9 percent and the rate of inflation is 0.6 percent in a given year, then what is the corresponding real rate of return?

A) 3.5 percent B) 2.3 percent C) -3.5 percent D) None of the above.