Question 5 of 11 0.05/1 View Policies Show Attempt History Current Attempt in Progress After graduating from dental school two years ago, Dr. Mary Smith purchased the dental practice of a long-time dentist who was retiring. In January of this year, she had to replace the outdated autoclave equipment she inherited from the previous dentist. Now, as she is preparing her budget for next year, she is concerned about understanding how her cost for sterilizing her dental instruments has changed. She has gathered the following information from her records: Month Number of instruments used Total autoclave cost January 850 $ 7,475 February 750 6,950 March 920 7,883 April 950 8,300 May 1.150 8,950 June 900 7,838 July 1.050 8.925 August 975 8.231 (a) - Your answer is partially correct. Identify the high and low points. Activity Level $ High point $ Low point $ Using the high-low method, what is the variable cost of sterilizing an instrument using the new equipment? (Round answer to 2 decimal places, e.g. 52.75.) $ Variable cost per instrument