David is a college professor who does some consulting work on the side. He uses 25% of his home exclusively for the consulting practice. He is single and 63 years old. His AGI (without consideration of consulting income) is $43,500. Other information follows: Income from consulting business $ 4,375 Consulting expenses other than home office 1,800 Total costs relating to home: Interest and taxes 6,725 Utilities 1,650 Maintenance and repairs 525 Depreciation (business part only) 1,875 Required: Calculate Davids AGI. Note: Do not round intermediate calculations