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 Number of Cavities Filled 375 400 600 625 475 650 300 675 425 Total Cost $5,400 5,350 6,200 6,150 5,800 6,050 5,050 6,550 5,650 Required 1. Use the high-low method to estimate total fixed cost and variable cost per cavity filled. (Round your answers to 2 decimal places.) Fixed Cost Variable Cost per Unit 2. Using these estimates, calculate Mountain's total cost for filling 700 cavities. Estimated Total Cost