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	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: 1. Use the high-low method to estimate total fixed cost and variable cost per cavity filled. (Round your answers to 2 decimal places.) 2. Using these estimates, calculate Mountains total cost for filling 450 cavities.