E5-7 (Algo) Estimating Cost Behavior Using High-Low Method [LO 5-3) 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 Month Cavities Filled Total Cost January 575 $6,350 February 625 6,250 March 700 6,400 April 600 6,250 May 525 6,150 June 375 5,400 July 475 5,800 August 5,000 September 400 5,400 350 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