Yanni, who is single, provides you with the following information for 2018:

Salary	$250,000
State income taxes	25,000
Mortgage interest expense ($480,000 mortgage)	21,600
Charitable contributions	18,000
Interest income	13,000

Compute the following:

a. Yanni's taxable income:	$ _____
b. Yanni's AMT base:	$ _____
c. Yanni's tentative minimum tax:	$ _____