[The following information applies to the questions displayed below.] This year Randy paid $31,300 of interest on his residence. (Randy borrowed $494,000 to buy his residence, which is currently worth $544,000.) Randy also paid $3,600 of interest on his car loan and $5,850 of margin interest to his stockbroker (investment interest expense). How much of this interest expense can Randy deduct as an itemized deduction under the following circumstances? a. Randy received $3,080 of interest this year and no other investment income or expenses. His AGI is $75,000.