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 Miles Traveled by Tour Buses Cost 18,600 real 15,000 December 17,400 18,900 January 19,800 19,050 February 24,000 19,500 March 31,500 20,880 April 13,500 18,000 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 44,000 tour miles are driven. Complete this question by entering your answers in the tabs below. 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.) Variable cost per tour mile real