Mountain Dental Services is a specialized dental practice whose only service is filling cavities, Mountain has recorded the following for the past nine months: Total Cost $5,200 6,250 Number of Cavities Month Filled January 400 February 650 March 575 April 500 300 525 325 August 425 September 625 May June July 6,200 5,900 5,200 6,000 5,200 5,500 6,280 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 550 cavities. ER 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 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 550 cavities. Estimated Total Cost