Scot and Vidia, married taxpayers, earn $$241,800$ in taxable income and $$5,000$ in interest from an investment in City of Tampa bonds. $($Use the U$.$S$.$ tax rate schedule for married filing jointly.$)$

Required:

a$.$ If Scot and Vidia earn an additional $$81,800$ 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 $$81,800$ in deductions?

Note: For all requirements, do not round intermediate calculations. Round your answers to $2$ decimal places.

Answer is complete but not entirely correct.

$\backslash$table$[[$a$.$ Marginal tax rate,$24\mathrm{.}00,\%$