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Mickey and Jenny Porter file a joint tax return, and they itemize deductions. The Porters incur $$3,425$ in investment expenses. They also incur $$5,375$ of investment interest expense during the year. The Porters' income for the year consists of $$178,500$ in salary and $$4,495$ of interest income.

a$.$ What is the amount of the Porters' investment interest expense deduction for the year?

Investment interest expense deduction