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Gas prices are in a mild decline heading into the July 4 holiday, but motorists are expected to see the most expensive fuel costs around Independence Day since 2008.

The average price for a gallon of regular unleaded gasoline in Tennessee is just over $3.46 per gallon as of Sunday, compared with $3.47 a week ago.

The average price for a gallon of regular gas in Nashville is $3.51 per gallon, compared with $3.52 a week ago. The national average is just over $3.67 per gallon, compared with $3.68 a week ago. The high price for gas in 2014 is $3.70 nationally and $3.52 in Tennessee.

Current prices are approximately 20 cents higher than a year ago for the July 4 holiday, according to AAA – The Auto Club Group.

Still, more than 34.8 million Americans are expected to drive 50 or more miles from home for the holiday, which would be the most in seven years. More than 742,000 are expected to travel by automobile in Tennessee for July 4.

The highest July 4 national average for regular unleaded gas was $4.10 per gallon in 2008.

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