Simon lost $4,300 gambling this year on a trip to Las Vegas. In addition, he paid $2,650 to his broker for managing his $265,000 portfolio and $1,030 to his accountant for preparing his tax return. In addition, Simon incurred $3,160 in transportation costs commuting back and forth from his home to his employer's office, which were not reimbursed. Calculate the amount of these expenses that Simon is able to deduct, assuming he itemizes his deductions, in each of the following situations:

a. Simon's AGI is $32,000.

deductible amount?

b. Simons AGI is $203,600.

deductible amount?