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 375 Month January February Mareh April May June July 500 350 600 325 475 525 575 450 Total Cont $5,300 5,850 5,200 6,250 5,150 5,700 6, 100 6,300 5,550 September 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 400 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.) Fbced Cost Variable Cost per cavity filled PA1 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 400 cavities. Estimated Total Cos! Required 1