Problem 3-42 (Algorithmic) (LO. 5, 6, 9) David and Ruby are engaged and plan to get married. During 2020, David is a full-time student and earns $6,700 from a part-time job. With this income, student loans, savings, and nontaxable scholarships, he is self-supporting. For the year, Ruby is employed and has wages of $55,000. Click here to access the standard deduction table to use. Click here to access the Tax Rate Schedules. If an amount is zero, enter, "0". Do not round your intermediate computations. Round your final answer to nearest whole dollar. a. Compute the following: David Filing Single Ruby Filing Single Gross income and AGI $ 6,700 $ 55,000 Standard deduction 12,400 12,400 Taxable income 0 42,600 Income tax 0 7,668 X b. Assume that David and Ruby get married in 2020 and file a joint return. What is their taxable income and income tax? Round your final answer to nearest whole dollar. Married Filing Jointly Gross income and AGI 61,700 Standard deduction 24,800 Taxable income 36,900 Income tax c. How much income tax can David and Ruby save if they get married in 2020 and file a joint return? Feedback Check My Work Partially correct