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Joyce Murphy runs a courier service in downtown Seattle she charges clients $0.50 per mile driven Joyce has determined that she drives 3, 300 miles in a month, her total operating cost is $875. if she drives 4, 400 miles in a month, her total operating cost is $1, 095. Joyce has used the high-low method to total monthly cost equation is total monthly cost = $215 -$0.20 per mile driven. Required: Determine how many miles Joyce needs to drive to even (Round your intermediate calculations to 2 decimal places and final answer to the nearest whole number) _