Which type of cost occurs when an individual pays for a piano lesson instead of going to a movie?

A) fixed cost

B) marginal cost

C) residual cost

D) opportunity cost

How many calories does skateboarding burn?

1. What qualities does the North Korean government expect its citizens to have? 2. What qualities are valued in South Korea?

Suppose a woman marries her butler. After they are married, her husband continues to wait on her as before, and she continues to support him as before (but as a husband rather than an employee).

How is the hemisphere different from a sphere?

The longer an individual is exposed to a strong odor, the less aware of the odor the individual becomes. this phenomenon is known as

The best example of a biological predisposition to learning is which of the following? After Ted got sick from eating sushi from the deli, he became nauseous whenever he thought of eating sushi.

A rectanglur room is 4.5 meters by 12 meters. what is the area of the room in square meters

How many country in the world?

In federalism, the power to govern is a. given to the people. eliminate b. limited to the national government. c. given mainly to the state governments. d. shared between the national and state governments.

Does Aristotle believe that there exists a law that can determine which actions are ""right"" and which actions are ""wrong?""