Sheridan Taxi Service uses the units$-$of$-$activity method in computing depreciation on its taxicabs. Each cab is expected to be driven $141,000$ miles. Taxi $10$ cost $$31,520$ and is expected to have a salvage value of $$500.$ Taxi $10$ was driven $35,000$ miles in $2024$ and $30,900$ miles in $2025.$

$($a$)$

Determine the depreciation cost per mile. $($Round answer to $2$ decimal places, es$.1\mathrm{.}25.)$

Depreciable cost per mile

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