Problem 3-40 (LO 3-3) Required: A married couple received $8,600 of social security benefits. a. Calculate the taxable amount of those benefits if the couple's provisional income is $19,000. b. Calculate the taxable amount of those benefits if the couple's provisional income is $36,500. c. Calculate the taxable amount of those benefits if the couple's provisional income is $53,000. Taxable amount of benefits a. b. C