9. Alex and Addison are married and have the following income items: Alex's salary $52,500 Addison's Schedule C net profit 41,800 Interest income 1,300 Addison's self-employment tax was $5,906. Addison's Schedule C net business profit is qualified business income (non-service). The couple have $8,070 itemized deductions and no children or other dependents. Compute their income tax on a joint return.