Rio 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 0.2545 U.S. dollar.) Month November December January February March April Miles Traveled by Tour Buses 13,350 16,300 19, 250 22,900 30,400 12,400 Cost 17,500 real 17,800 17,950 18,400 20,050 16,900 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 33,000 tour miles are driven. Required 1 Required 2 Required 3 Use the high-low method to estimate the variable cost per tour mile traveled and the fixed cost per month. (Round "Variable cost per tour mile" to 3 decimal places.) real Variable cost per tour mile Fixed cost per month real Required 1 Required 2 > Required 1 Required 2 Required 3 Develop a formula to express the cost behavior exhibited by the company's maintenance cost. (Round "Variable cost per tour mile" to 3 decimal places.) Maintenance cost per month = real + real x