value: 1.00 points Mountain Dental Services is a specialized dental practice whose only service is filling cavities. Mountain has recorded the following for the past nine months: Number of Cavities Filled 625 700 Month January February March April May June July August September 500 425 450 300 375 550 575 Total Cost $5,600 6.000 4.500 4,100 4.500 3.200 3,500 4.900 5,400 Required: 1. Use the high-low method to estimate total fixed cost and variable cost per cavity filled. Fixed Cost Variable Cost per Unit $ $ 1,100 7 2. Using these estimates, calculate Mountain's total cost for filling 500 cavities. Estimated Total Costs 4,600