Considering the premise ' Most menu prices include taxes and a service charge, but it's customary to leave a tip if you were served satisfactorily.', is 'Most customers will tip in addition to the tax on the menus.' a statement that stands on its own?
 Most menu prices include taxes and a service charge, but it's customary to leave a tip if you were served satisfactorily.###Most customers will tip in addition to the tax on the menus.