A rise in input prices of oil, which affects many or most firms across the economy, can cause the aggregate supply curve to______________.

The slope of the production possibilities frontier is

A) positive. B) negative. C) zero. D) undefined.

Refer to the above table. Suppose the firm hires 4 workers and the price of the good sold is $4. The marginal factor cost of labor must be

A) $4. B) $150. C) $3080. D) $600.