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: Month January February March April May June July August September Number of Cavities Filled 300 500 675 475 525 575 350 325 550 Total Cost $5, 100 5,650 6,600 5,800 5,950 6,350 5, 150 5,150 6,100 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 600 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 cav decimal places.) Fixed Cost