Lacy is a single taxpayer. In 2022, her taxable income is $45,000. What is her tax liability in each of the following alternative situations? Use Tax Rate Schedule, Dividends and Capital Gains Tax Rates for reference. Note: Do not round intermediate calculations. Round your answer to 2 decimal places. Required: a. All of her income is salary from her employer. b. Her $45,000 of taxable income includes $2,000 of qualified dividends. c. Her $45,000 of taxable income includes $6,000 of qualified dividends