Marginal tax rates Partner A$,$ a single taxpayer, is one of two partners in a small business. As such, she receives pass$-$through income that is taxed at her personal tax rates. After all adjustments and deductions have been made, including the $20\%$ qualified business income deduction, she is preparing to calculate her taxes owed for the year. Using the tax rate schedule given here i$],$ perform the following:

a$.$ Find the marginal tax rate for the following levels of sole proprietorship earnings before taxes: $$13,200$;$$59,100$;$$88,500$;$$153,000$;$$254,000$; $$447,000$; and $$1\mathrm{.}4$ million.

b$.$ Plot the marginal tax rates $($measured on the $y-$axis$)$ against the pretax income levels $($measured on the $x-$axis$).$ Explain the relationship between these variablss?

a$.$ The marginal tax rate for earnings before taxes of $$13,200$ is $\%.($Round to the nearest integer.$)$

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Tax Rate $-$ Single Taxpayers $-2018$

Tax calculation

$\backslash$table$[[$Range of taxable income,Base tax,$+,($Marginal rate $$ amount over base bracket$),,],[$$$0$ to$,$$$9,525,$$$0,,$ amount over,$$0$