7. The Grip of Gas U.S. drivers are ranked as the least sensitive to changes in the price of gasoline. For example, if the price rose from $3 to $4 per gallon and stayed there for a year U.S. purchases of gasoline would fall only about 5 percent. Source: Slate, September 27, 2005 a. Calculate the price elasticity of demand for gasoline. Is the demand for gasoline elastic, unit elastic, or inelastic? b. Explain how the price rise from $3 to $4 a gallon changes the total revenue from gasoline sales.

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