Mark is a single taxpayer. During the current year, he pays the following amounts. Mark's adjusted gross income is $100,000 before considering these expenses. State income taxes withheld from paycheck $ 5,000 Federal income taxes withheld from paycheck 15,000 FICA taxes withheld from paycheck 7,650 Cash contribution to state university 8,000 Renter's insurance on apartment 500 Cash contribution to church 2,000 Cable television subscription fees 1,000 Cost of professional wardrobe 7,000

What is Mark's taxable income?