Midori and Tremaine are in the 24% tax bracket, file jointly, and take the standard deduction. How much will their tax bill be reduced if they qualify for a $500 refundable tax credit? How much will it be reduced by a $500 tax-deductible expense? Vanessa is single, in the 35% tax bracket, and takes the standard deduction. How much will her tax bill be reduced if she qualifies for a $6000 refundable tax credit? How much will it be reduced by a $6000 tax-deductible expense?