Brazilia Bus Tours has incurred the following bus maintenance costs during the recent tourist season. (The real is Brazil's national monetary unit. On the day this exercise was written, the real was equivalent in value to .3426 U.S. dollar.)

Required:
1. Use the high-low method to estimate the variable cost per tour mile traveled and the fixed cost per month.
2. Develop a formula to express the cost behavior exhibited by the company's maintenance cost.
3. Predict the level of maintenance cost that would be incurred during a month when 34,000 tour miles are driven.

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Miles Traveled Month November December January.. by Tour Buses February March April Maintenance Cost 12,750 17,100 real 15,900 17,400 19,050 17,550 22,500 18,000 30,000 18,750 12,000 16,500