Suzanne, who is a head of household, has the following deductions before considering any phaseouts:
Interest on qualified acquisition debt........................$9,800
Real property taxes...............................................3,000
State income taxes................................................5,000
Charitable contributions.........................................2,500
Calculate her itemized deductions after any phaseout for each of the following independent situations:
a. Her AGI is $200,000.
b. Her AGI is $320,000.
c. Her AGI is $425,000.