Mountain Dental Services is a specialized dental practice whose only service is filling cavities. Mountain has recorded the following for the past nine months Month January February Number of Cavities Filled 625 Total Cost $5,600 6,000 4,500 4,100 4,500 425 375 3,500 4,900 5,400 September 575 Required: 1. Use the high-low method to estimate total fixed cost and variable cost per cavity filled Fixed Cost Variable Cost per Unit 2. Using these estimates, calculate Mountain's total cost for filling 500 cavities Estimated Total Cost