Compute the 2021 standard deduction for the following taxpayers. If an amount is zero, enter "O". Click here to access the standard deduction table to use. a. Ellie is 15 and claimed as a dependent by her parents. She has $1,800 in dividends income and $4,000 in wages from a part-time job. b. Ruby and Woody are married and file a joint tax return. Ruby is age 66, and Woody is 69. Their taxable retirement income is $15,680. c. Shonda is age 68 and single. She is claimed by her daughter as a dependent. Her earned income is $570, and her interest income is $650. d. Frazier, age 44, is married but is filing a separate return. His wife itemizes her deductions Compute the 2021 tax liability and the marginal and average tax rates for the following taxpayers. Click here to access the 2021 tax rate schedule. If required, round the tax liability to the nearest dollar. When required, round the average rates to four decimal places before converting to a percentage (1...67073 would be rounded to .6707 entered as 67.07%). a. Chandler, who files as a single taxpayer, has taxable income of $102,400. Tax liability: 18,597 Marginal rate: 24 % Average rate: % b. Lazare, who files as a head of household, has taxable income of $81,000 Tax liability: 13,568.5 Marginal rate: 22 Average rate