Use Table 3.6 Note: Do not round intermediate calculations. Round your answers to 1 decimal place. a. What would be the marginal tax rate for a married couple with income of $90,300 ? b. What would be the average tax rate for a married couple with income of $90,300 ? c. What would be the marginal tax rate for an unmarried taxpayer with income of $90,300 ? d. What would be the average tax rate for an unmarried taxpayer with income of $90,300? \begin{tabular}{|c|r|c|} \hline \multicolumn{2}{|c|}{ Taxable Income (\$) } & \\ \hline Single Taxpayers & Married Taxpayers Filing Joint Returns & Tax Rate (\%) \\ \hline 09,950 & 019,900 & 10% \\ \hline 9,95040,525 & 19,90081,050 & 12% \\ \hline 40,52586,375 & 81,050172,750 & 22% \\ \hline 86,375164,925 & 172,750329,850 & 24% \\ \hline 164,925209,425 & 329,850418,850 & 32% \\ \hline 209,425523,600 & 418,850628,300 & 35% \\ \hline 523,600 and above & 628,300 and above & 37% \\ \hline \end{tabular}