56. LO.4, 5 Linda and Don are married and file a joint return. In 2019, they received Decision Making $12,000 in Social Security benefits and $35,000 in taxable pension benefits and interest. a....

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Extracted text: 56. LO.4, 5 Linda and Don are married and file a joint return. In 2019, they received Decision Making $12,000 in Social Security benefits and $35,000 in taxable pension benefits and interest. a. Compute the couple's adjusted gross income on a joint return. b. Don would like to know whether they should sell for $100,000 (at no gain or loss) a corporate bond that pays 8% in interest each year and use the proceeds to buy a $100,000 nontaxable State of Virginia bond that will pay $6,000 in interest each year. Assume that their marginal tax rate is 12%. If Linda in part (a) works part-time and earns $30,000, how much will Linda and Don's adjusted gross income increase? C.