Aperson has a comparative advantage in an activity whenever he or she can do everything better than anyone else. can perform the activity at a lower opportunity cost than can anyone else. has an absolute advantage in the activity. can do the activity in less time than anyone else.

The state in which the manufacturing company you work for is located regulates the presence of a particular substance in the environment to concentrations ≤ x. recently-released, reliable research endorsed by the responsible federal agency conclusively demonstrates that the substance poses no risks at concentrations up to 5x. your company has asked you to consider designing a new process with a waste discharge stream containing up to 2x of the substance. based on the stated conditions, describe this possible.

Which three of the following expenses can student aid recover? -tuition -television -school supplies -parties and socializing -boarding/housing

To travelers know what to expect researchers collect the prices of commodities