The average price for a gallon of regular unleaded gasoline in the United States hit a seven-year high this week according to the latest data from AAA showing the going rate is $3.22 per gallon, a cost not seen since this month in 2014. In some states, the cost per gallon is even higher like in California where the average price is now $4.42. In certain metropolitan areas, gas is more than $5 per gallon. Just one year ago, the average price for a gallon of regular unleaded was only $2.18, according to AAA. The current spike in prices to...