By Jack PerryPROVIDENCE, R.I. -- Gas prices in Rhode Island ticked up 3 cents over the past week, according to AAA Southern New England. The average price for a gallon of regular unleaded gasoline is $3.549 per gallon at self-service pumps in Rhode Island, according to AAA's weekly survey. That price is also 3-cents higher than it was a month ago. Rhode Island drivers are paying 20 cents more than the national average of $3.349. At this time last year, Rhode Island drivers were paying $3.579. AAA's survey found a 30-cent range in price, from a low of $3.459 to a high of $3.759.