Considering ' Most menu prices include taxes and a service charge, but it's customary to leave a tip if you were served satisfactorily.', can one logically arrive at 'Tips are not accepted at most restaurants, as there is already a sales tax.'
 Most menu prices include taxes and a service charge, but it's customary to leave a tip if you were served satisfactorily.###Tips are not accepted at most restaurants, as there is already a sales tax.