Question a and b, please

Arthur Wesson, an unmarried individual who is age 68,reports taxable income of $160,000 in 2015. He records positive AMT adjustments of $40,000 and preferences of $35,000. Arthur itemizes his deductions, and his regular tax liability in 2015 is $38,000. Whai is Arthur's AM'I'? what the total amount of Arthur's tax liability? Draft a letter to Arthur explaining? why?he must pay more than the regular income tax liability. Arthur's address is 100 Colonels Way. Conway.SC 29526