Judy and Gregory are married and file a joint return. They expect to have $450,000 of taxable income in the next year and are considering whether to purchase a personal residence that would provide additional tax deductions of $45,000 for mortgage interest and real estate taxes. (Click the icon to view the 2021 tax rate schedule for the Married filing jointly filing status.) Requirement a. What is their marginal tax rate for purposes of making this decision? (Enter amounts as percentages to one decimal place) What is the marginal tax rate if the personal residence is not purchased? What is the marginal tax rate if the personal residence is purchased? Requirement b. What is the tax savings if the residence is acquired? (Do not round intermediary calculations. Only round the amounts you input in the cells to the nearest cent.) Tax without purchase of personal residence Tax with purchase of personal residence Tax savings