Consider the following 2020 personal income tax schedule obtained from the IRS website. It applies to a married couple that is combining their incomes and filing jointly. If Taxable Income Is Over But Not Over The Tax Is $0 $18,550 10% of the amount over $0 $18,550 $75,300 $1,855 plus 15% of the amount over $18,550 $75,300 $151,900 $10,367.50 plus 25% of the amount over $75,300 What is the tax due for a couple if each spouse has a taxable income of $25,000? What is the tax due for a couple if one spouse has a taxable income of $50,000 and the other spouse has no taxable income? (Express your answer to two decimal points.) Tax due = $