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Mary Jarvis is a single individual who is working on filing her tax return for the previous year. She has assembled the following relevant information:

She received $$101,000$ in salary.

She received $$19,000$ of dividend income.

She received $$6,800$ of interest income on Home Depot bonds.

She received $$22,500$ from the sale of Disney stock that was purchased $2$ years prior to the sale at a cost of $$10,000.$

She received $$11,000$ from the sale of Google stock that was purchased $6$ months prior to the sale at a cost of $$4,600.$

Mary only has allowable itemized deductions of $$4,600,$ so she will take the standard deduction of $$12,400.$ The standard deduction is subtracted from her gross income to determine her taxable income.

Assume that her tax rates are based on Table $3\mathrm{.}5.$

a$.$ What is Mary's federal tax liability? Enter your answer as a positive value. Do not round intermediate calculations. Round your answer to the nearest cent.

$ $$

b$.$ What is her marginal tax rate? Do not round intermediate calculations. Round your answer to one decimal place.

$q,\%$

c$.$ What is her average tax rate? Do not round intermediate calculations. Round your answer to two decimal places.