An employee works 47 hours (47 - 40 were overtime hours) during a workweek in December of 2021. He earns $39/hour, with his employer paying 1.5 times the regular rate of pay for overtime hours. To date, he has earned $140,950 during the year. He has requested that his employer withhold 6% of gross pay, which is to be contributed to a 401(k) plan. Taxable income for federal income tax withholding = $ Taxable income for social security tax = $ Taxable income for medicare tax = $