Derrick and Daphney file a joint return. Derrick earned $37,000 during the year before losing his job. Daphney received Social Security benefits of $4,800. Requirements Determine the taxable portion of the Social Security benefits. b. What is the taxable portion of the Social Security benefits if Derrick earned $50,000? a. Requirement a. Determine the taxable portion of the Social Security benefits. Begin by computing the provisional income. Only select iems that are applicable to Dan and Diana. (Leave unused cells blank, do not select a label or enter a zero.) Plus: Provision 50% of Social Security benefits The taxal Adjusted gross income (excluding Social Security benefits) Excluded foreign income Requiren Gross income Begin by Social security benefits Tax-exempt interest Choose from. T arned $50,000? the next question. Provisional income The taxable portion of the Social Security benefits is Requirement b. What is the taxable portion of the Social Security benefits if Derrick earned $50,000? Begin by computing the provisional income. The provisional income is The taxable portion of the Social Security benefits is Choose from any list or enter any number in the input fields and then continue to the next