Rio Bus Tours has incurred the following bus maintenance costs during the recent tourist season. (The real is Brazils national monetary unit. On the day this exercise was written, the real was equivalent in value to 0.2545 U.S. dollar.)

Month	Miles Traveled by Tour Buses			Cost
November		15,450			18,900		real
December		17,700			19,200
January		19,950			19,350
February		24,300			19,800
March		31,800			21,000
April		13,800			18,300

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 companys maintenance cost. 3. Predict the level of maintenance cost that would be incurred during a month when 47,000 tour miles are driven.

Please show steps!