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 625 700 500 425 450 300 375 550 575 Total Cost $5,600 6,000 4,500 4,100 4,500 3,200 3,500 4,900 5,400 February March April June July Required 1. Use the high-low method to estimate total flxed cost and variable cost per cavity filled Fixed Cost ble Cost per Unit 2. Using these estimates, calculate Mountain's total cost for filling 500 cavities. mated Total (