According to the brackets at https://www.forbes.com/sites/kellyphillipserb/2017/10/19/irs-announces-2018-tax-brackets-standard-deduction-amounts-and-more/#1202a

According to the brackets at https://www.forbes.com/sites/kellyphillipserb/2017/10/19/irs-announces-2018-tax-brackets-standard-deduction-amounts-and-more/#1202a8a4273b https://www.forbes.com/sites/kellyphillipserb/2017/10/19/irs..., and assuming the $13000 standard deduction, I work out $69350 to owe $7500.