Drivers in Rhode Island are paying a little more at the pump than they were a week ago.AAA Northeast said Monday that its latest weekly survey of gas prices found self-serve regular selling for an average of $2.89 per gallon in Rhode Island, up 2 cents from the previous week.The current U.S. average is 4 cents lower at $2.85 per gallon. AAA says demand for gasoline rose around the country over the past week while supplies dropped.