Abbygail, Who Is Single, Had Taxable Income of $115,000 for 2014

Essay

Abbygail, who is single, had taxable income of $115,000 for 2014. She had positive AMT adjustments of $30,000; negative AMT adjustments of $12,000; and tax preference items of $50,000.
a. Compute her alternative minimum taxable income (AMTI).
b. Assume the same facts as in part a. Compute Abbygail's tentative minimum tax.