Canyon Dental Services is a specialized dental practice whose only service is filling cavities. Canyon has recorded the following for the past nine months Number of Cavities Month January Filled Total Cost 600 $6,150 February 375 5,250 March 500 5,050 April 675 6,500 May 525 6,100 June 550 5,950 July 625 6,000 August 300 5,000 September 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 Canyon's total cost for filling 750 cavities