Jill and george are married and file a joint return, they exept to have 400,000 of taxable income in the year nad are considering whether to purchase a personal residence that woul provide additional tax deductions of 80,000 for mortgage interest and real estate taxes. what is their marginal tax rate for purposes of making this decision? ignore the effects of a phase-out personal exemptions and itemized deductions. what Is the tax savings if thae residence is acquired? Jill and george are married and file a joint return, they exept to have 400,000 of taxable income in the year nad are considering whether to purchase a personal residence that woul provide additional tax deductions of 80,000 for mortgage interest and real estate taxes. what is their marginal tax rate for purposes of making this decision? ignore the effects of a phase-out personal exemptions and itemized deductions. what Is the tax savings if thae residence is acquired