3. Mary Parker is 24 years of age, single, lives in an apartment, and has no dependents. Last year she earned $68,700 as a wharehouse supervisor for Amazon in Dallas. $5,250 of her wages were withheld for Federal Incomes taxes. In addition, she had interest income from a time deposit (CD) of $962. Estimate her taxable income, tax liability, and tax refund/owed. (Look in your text for the income tax schedules and standard deductions). 4. Bill and Betty Jacobs jointly earn $62,000 per year AFTER taxes. Through an inheritance and some good investing, they now have a portfolio of securities worth $190,000. a. How much of their annual income do you suggest they hold in a liquid savings as reserves? Why? b. How much should they hold in savings and short-term investment securities in their portfolio? c. How much, in TOTAL, should they hold in short-term liquid assets