According to the EPA, using known and available technology, what percentage of the current air and water pollution could be eliminated with current resources?

If the absolute value of the price elasticity of demand for tickets to a football game is 2, then if the price increases by 1%, quantity demanded decreases by:

A. 1%. B. 4%. C. ½%. D. 2%.

Over time, the equilibrium price of a gigabyte of computer memory has fallen while the equilibrium quantity purchased has increased. Based on this we can conclude that:

A. decreases in the demand for computer memory have exceeded increases in supply. B. increases in the supply of computer memory have exceeded increases in demand. C. increases in the demand for computer memory have exceeded increases in supply. D. decreases in the supply of computer memory have exceeded increases in demand.