Problem: Business Expense Deduction $($Algo$)$

Ryan is self$-$employed. This year Ryan used his personal auto for several long business trips. Ryan paid $$2,300$ for gasoline on these trips. His depreciation on the car if he was using it fully for business purposes would be $$5,000.$ During the year, he drove his car a total of $17,000$ miles $($a combination of business and personal travel$).$

a$.$ Ryan can provide written documentation of the business purpose for trips totaling $3,100$ miles. What business expense amount can Ryan deduct $($if any$)$ for these trips?

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