Use the chart below of the 2020 Tax Bracket system to calculate the marginal tax rate for Sam. Sam is a single parent of two children, ages 4 and 6 . She divorced 3 years ago. The children live with her full time. She earns $85,000 per year as a consultant. Her ex-husband pays her a total of $5,000 in alimony and $12,000 in child support a year. Assuming there are no additional adjustments to income, credits, or deductions (including the standard deduction at this point), what is her tax liability? You must show your work process. Calculations Work: Sam's Tax Liability before adjustments, credits, and deductions