Whitney received $76,000 of taxable income in 2022 . All of the income was salary from her employer. What is her income tax liability in each of the following alternative situations? Use Tax Rate Schedule for reference. Note: Do not round intermediate calculations. Required: a. She files under the single filing status. b. She files a joint tax return with her spouse. Together their taxable income is $76,000. c. She is married but files a separate tax return. Her taxable income is $76,000 . d. She files as a head of household..