Mark (age 55 in 2017) and his wife, Mary, were married in 1990. Mark and Mary have a son, Matt, who was born in 2007. Mary passed away on March 4, 2016. Matt lived with Mark for all of 2017, and Mark provided all of Matt's support. Other than Matt, Mark has no dependents. Mark's 2017 AGI is $135,000, and Mark has itemized deductions of $10,000. Matt has no income. Using the most beneficial filing status and deduction that Mark qualifies for in 2017, what is Mark's taxable income for 2017? Note: understand what Mark's filing status options were for 2016