Problem 6-39 (LO 6-5) 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 $44.250. Other information follows: $ 4,450 1,860 Income from consulting business Consulting expenses other than home office Total costs relating to home: Interest and taxes Utilities Maintenance and repairs Depreciation (business part only) 6,770 1,680 540 1,950 Required: Calculate David's AGI. (Do not round Intermediate calculations.) AGI