Melvin and sylvia are married with no children, and they're filing their federal income tax return. melvin had a gross income of $44,500 last year, while sylvia had a gross income of $51,200, and they plan to use the standard deduction. they're trying to decide whether to file their return jointly or separately, so they want to calculate how much less they would pay in federal income taxes if they filed jointly rather than separately. (8 points: part i - 2 points; part ii - 3 points; part iii - 1 point; part iv - 1 point; part v - 1 point) part i: when filing separately, both melvin and sylvia have a standard deduction of $5700, and each can claim him/herself as an exemption for $3650. neither has any additional adjustments to income. what is melvin's taxable income? how about sylvia's taxable income? part ii: according to the tax tables below, how much would melvin pay in federal income taxes if filing separately? how much would sylvia pay if filing separately? how much would melvin and sylvia pay combined if filing separately? part iii: when filing jointly, melvin and sylvia have a standard deduction of $11,400, they can claim one exemption for each of them for $3650 each, and they don't have any additional adjustments to income. what is their taxable income? part iv: according to the tax table below, how much would melvin and sylvia pay in federal income taxes if filing jointly? part v: how much less would melvin and sylvia pay in federal income taxes if they filed jointly rather than separately?