Mike has an adjusted gross income of $85,643. he claims two exemptions and can deduct $896 for state income tax, $2,145 for charitable donations, and $3,473 for medical expenses. if the standard deduction is $5,700 and exemptions are each worth $3,650, what is mike’s total taxable income? a. $72,643 b. $75,479 c. $71,829 d. $66,129