Meals at restaurants in town will get a little more expensive, courtesy of a vote to impose a local meals tax. The Weymouth Town Council voted, 8 to 2 on April 16 to approve Mayor Sue Kay’s proposal to add a 0.75 percent tax to restaurant meals. The tax takes effect July 1, and the money generated — an estimated $525,000 annually — will be used to help maintain town parks and fields, Kay said. The local meals tax became an option in 2009 when the Legislature allowed communities to approve it as an addition to the 6.25 percent tax the state already tacks on restaurant bills. About 160 Massachusetts communities have added the local tax, according to the state.