need help with work out problem!! thanks in advance

Mr. Garrett, a single taxpayer, has $15,500 AGI. Assume the taxable year is 2019. Use Standard Deduction Table a. Compute his taxable income if Mr. Garrett's AGI consists entirely of interest income. He is 19 years old and is considered a dependent of his parents for tax purposes. b. Compute his taxable income if Mr. Garrett's AGI consists entirely of wage income. He is 19 years old and is considered a dependent of his parents for tax purposes. c. Compute his taxable income if Mr. Garrett's AGI consists entirely of interest income and he lives with his son who provides more than one-half of his financial support. He is 70 years old. Complete this question by entering your answers in the tabs below. Required A Required B Required Compute his taxable income if Mr. Garrett's AGI consists entirely of interest income. He is 19 years old and is considered a dependent of his parents for tax purposes. Taxable income Require Required B > purposes. Compute his taxable income if Mr. Garrett's AGI consists entirely of interest income and he lives with his son who pr than one-half of his financial support. He is 70 years old. Complete this question by entering your answers in the tabs below. Required A Required B Required Compute his taxable income if Mr. Garrett's AGI consists entirely of wage income. He is 19 years old and is considered a dependent of his parents for tax purposes. Taxable income Complete this question by entering your answers in the tabs below. Required A Required B Required Compute his taxable income if Mr. Garrett's AGI consists entirely of interest income and he lives with his son who provides more than one-half of his financial support. He is 70 years old. Taxablo income