2. Carolyn and Matt are married, and file their taxes jointly. Their combined gross income for 2017 was $154,923. They use the standard deduction. They also have interest income in the amount of $2,398. a) What is their taxable income for 2019? b) What is Carolyn and Matt's tax liability? c) If they had $14,723 deducted from their checks for Federal Income taxes in 2019, do they get a refund or owe the government? How much? 3. Name three different sources of taxable income