**Anne decides to spend 3 hours working overtime rather than watching a video with her friends.  She earns $8 an hour.  Her opportunity cost of working is: ​

The production possibilities frontier is the        

Assume that the Montana and Missouri can switch between producing birdhouses and baskets at a constant rate.   Refer to the table above.  The opportunity cost of 1 basket for Montana is

The above figure shows the production possibility frontier for a country. Suppose the country is producing at point A. What would be the opportunity cost to increase the production of rice to 12 tons?

**In an economy where heating oil is the primary source of heat for most households, new supplies of natural gas, a substitute for heating oil, are discovered. Natural gas provides heat at a much lower cost. What is the most likely effect of these discoveries on the market price and quantity of heating oil produced?​

The figure above shows a nation’s production possibilities frontier. In the figure, point B shows

The table above shows the demand schedules for loose-leaf tea of two individuals (Sunil and Mia) and the rest of the market. At a price of $5, the quantity demanded in the market would be

If a product is narrowly defined, it is likely to

The above figure shows the production possibility frontier for a country. Suppose the country is producing at point E. What would be the opportunity cost to increase the production of wine to 9 thousand bottles?

Assume that the U.S. and Japan can switch between producing airplanes and cars at a constant rate.     Refer to the table above.  The opportunity cost of 1 airplane for Japan is