TABLE $3\mathrm{.}6$ Personal tax rates, $2022.$

$\backslash$table$[[$Taxable Income $($$$),],[$Single Taxpayers,$\backslash$table$[[$Married Taxpayers Filing$],[$Joint Returns$]],$Tax Rate $(\%)],[0-9,950,0-19,900,10\%$

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Use Table $3\mathrm{.}6.$

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 $$89,300?$

b$.$ What would be the average tax rate for a married couple with income of $$89,300?$

c$.$ What would be the marginal tax rate for an unmarried taxpayer with income of $$89,300?$

d$.$ What would be the average tax rate for an unmarried taxpayer with income of $$89,300?$

$\backslash$table$[[$a$.$ Marginal tax rate for a married couple,$\%,\%$