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 $$126,000$ in salary.

She received $$10,500$ of dividend income.

She received $$5,300$ of interest

income on Home Depot bonds.

She received $$23,500$ from the sale of Disney stock that was purchased $2$ years prior to the sale at a cost of $$6,300.$

She received $$14,500$ from the sale of Google stock that was purchased $6$ months prior to the sale at a cost of $$6,600.$

Mary receives one exemption $($$$4,000),$ and she has allowable itemized deductions of $$7,500.$

These amounts will be deducted from her gross income to determine her taxable income.

Assume that her tax rates are based on the included table

A$.$ What is Mary's federal tax liability? Round your answer to the nearest cent. Do not round intermediate calculations.

B$.$ What is her marginal tax rate? Round your answer to $1$ decimal place.

C$.$ What is her average tax rate? Round your answer to $2$ decimal places.