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 600 $6,150 375 5,250 500 5,850 675 6,500 525 6,100 550 5,950 625 6,000 300 5,000 325 5,000 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 750 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 decim Fixed Cost Variable Cost per cavity filled (Required Required ed 2 >