John, a single taxpayer, had 2013 wages of $75,000 from his job at Big Company, Inc. What is John's AGI if he has the following (and only the following) additional items in 2013?
• Itemized deductions of $12,000
• Exemption amount of $3,900
• Alimony of $10,000 received by John (from his former spouse, Natalia)
• Business income of $5,000 from John's sole proprietorship
Ignore any deduction that may relate to self-employment taxes.