Check my work Scot and Vidia, married taxpayers, earn $257400 in taxable income and $5,000 in interest from an investment in City of Tampa bonds (Use the US tax rate schedule for married filing Jointly) Required: a. If Scot and Vidia earn an additional $99.500 of taxable income, what is their marginal tax rate on this income? b. What is their marginal tax rate if instead, they report an additional $99,500 in deductions? (For all requirements, do not round intermediate calculations. Round your answers to 2 decimal places.) a Marginal tax rate Marginal tax rate