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	300	$ 5,000
February	375	5,200
March	550	6,150
April	500	5,700
May	450	5,500
June	525	6,000
July	350	5,100
August	625	6,300
September	600	6,250

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 575 cavities.