Garrett Gibbons is an unmarried person who is 74 years old. He has the following income during 2020: Fully taxable pension Interest from First Bank Taxable portion of Social Security Benefits (in other words, don't calculate this!) $27.000 $2.000 $7,900 He has no Adjustments to Income and his itemized deductions are $4.500. What is Garrett's Income Tax Liability for 2020? USE THE TAX RATE SCHEDULES APPEARING IN APPENDIX A. DO NOT USE COMMAS OR DOLLAR SIGNS IN YOUR ANSWER!! IF YOU GET A DECIMAL AMOUNT IN YOUR FINAL ANSWER. ROUND UP THE ANSWER TO THE NEXT WHOLE DOLLAR AMOUNT. A/