The delivery trucks of Barnett's Farm Supply incurred maintenance costs of $4,000 during its busiest month of 2020, in which 10,000 miles were driven collectively. During its slowest month, $2,400 in maintenance costs were incurred, resulting from 5,000 miles being driven. Using the high-low method, what maintenance cost would the company expect to incur at 8,500 miles of driving? Multiple Choice O $6,720 $3,200 $5,358 $3,520 $2,720

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