Governor Bill Haslam is proposing to raise Tennessee’s tax on a gallon of gas by 7 cents while cutting the state’s sales tax on groceries and income from earnings on stocks and bonds. Haslam says average motorists would pay an extra $4 dollars more per month as part of his plan to generate $278 million annually in new money to pay for road projects around the state. The governor says he would balance the gas tax increase with proposed cuts of $55 million in the sales tax on groceries, $113 million in corporate taxes for manufacturing companies and $102 million in the Hall tax on investment income. Haslam also wants to tie the gas tax to inflation and let cities seek a sales tax surcharge to pay for transit projects.