A taxpayer earned wages of ​$​90, 200, received ​$ 490 in interest from a savings​ account, and contributed ​$ 10,800 to a​ tax-deferred retirement plan. He is entitled to a standard deduction of ​$ 18,800. The interest on home mortgage was ​$​ 6,900 he contributed ​$ 9,760 to​ charity, and paid ​$ 2,975 in state taxes.