Canyon Dental Services is a specialized dental practice whose only service is filling cavities. Canyon has recorded the following for the past nine months: Month Number of Cavities Filled Total Cost January 550 $ 6,050 February 375 5,200 March 325 5,000 April 500 5,750 May 400 5,400 June 650 6,400 July 625 6,200 August 600 6,200 September 300 5,000 Required: Use the high-low method to estimate total fixed cost and variable cost per cavity filled. Using these estimates, calculate Canyons total cost for filling 450 cavities.