Walter is an executive for IBM. He files as a single taxpayer for 2020. He deducted charitable contributions of $7.000, real estate taxes of $2.000, state income taxes of $4,000, and mortgage interest of $3.000 on $30,000 of acquisition indebtedness on his home. Walter's regular taxable income is $100,000. What is Walter's AMTI? O $110,000 O $106,000 O $108,000 O $102,000 Martha earned a salary of $45,000 working in a clothing store. She is single and 40 years old. She claims the standard deduction. She received $5,000 of qualified dividends. What is her tax liability before credits? O $3,715 O $2,464 O $3,440 O $2.962