After graduating from dental school two years ago, Dr. Lauren Farish 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 In January of this year, she had to replace the outdated autoclave equipment she inherited from the previous dentist.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 January Number of instruments used Total autoclave cost 850 $7,600 February 750 6,800 March 920 8,200 April 950 8,600 May 1,150 9,900 June 900 8,100 July 1,050 9,600 August 975 8,700 (a) Identify the high and low points. High point Low point Activity Level $ $ 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 eTextbook and Media Save for Later Attempts: unlimited Submit Answer (b) What is the fixed cost of the autoclave equipment? (Round answer to 2 decimal places, e.g. 52.75.) $ Fixed cost eTextbook and Media Save for Later Attempts: unlimited Submit Answer (c) What is the cost formula that Dr. Farish should use for estimating autoclave sterilization costs for next year's budget? (d) Formula of total cost eTextbook and Media Save for Later Attempts: unlimited Submit Answer If Dr. Farish estimates she will use 900 instruments next month, what cost should she include in her budget for instrument sterilization? (Round answer to 2 decimal places, e.g. 52.75.) Total cost eTextbook and Media Save for Later Attempts: unlimited Submit