Lacy is a single taxpayer. In 2015, her taxable income is $46,800. What is her tax liability in each of the following alternative situations? Use Tax rate schedule for reference. (Do not round intermediate calculations. Round your answers to 2 decimal places.)
a. All of her income is salary from her employer.
b. Her $46,800 of taxable income includes $1,300 of qualified dividends.
c. Her $46,800 of taxable income includes $15,300 of qualified dividends.