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	350	$5,050
February	425	5,500
March	400	5,300
April	600	6,300
May	700	6,600
June	500	5,850
July	550	6,150
August	525	6,100
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.