In May 2018, the U.S. Energy Information Administration projected that the average retail price for regular-grade gasoline would be $2.79 per gallon for the remainder of the year. Do some research on the price of gasoline. Has this projection been accurate? What is the price of regular-grade gasoline today in your city or town? If it is below $2.79 per gallon, what are the reasons? Similarly, if it is higher than $2.79, what has happened to drive up the price? Illustrate with supply and demand curves.