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 March April May June July August September Number of Cavities Filled Total Cost 575 $ 6,350 625 6,250 700 6,400 600 6,250 525 6,150 375 5,400 475 5,800 350 5,000 400 5,400 Required: 1. Use the high-low method to estimate total fixed cost and variable cost per cavity filled. 2. Using these estimates, calculate Mountain's total cost for filling 450 cavities. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Use the high-low method to estimate total fixed cost and variable cost per cavity filled. (Round your Variable cost per unit to 2 decimal places.) Fixed Cost Variable Cost per cavity filled Required 1 Required 2 > Complete this question by entering your answers in the tabs below. Required 1 Required 2 Using these estimates, calculate Mountain's total cost for filling 450 cavities. Estimated Total Cost