After graduating from dental school two years ago, Dr. Lauren Farish purchased the dental practice o

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 In January of this year she had to replace the outdated autoclave equipment she inherited from the previous dentist.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 Number of instruments used Total autoclave cost January 742 $7,486 February 642 6,548 March 842 7,000 April 1,042 9,054 May 942 7,708 June 1,142 8,592 July 1,342 10,162 August 1,242 9,836 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

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LINK TO VIDEOWhat is the fixed cost of the autoclave equipment? (Round answer to 0 decimal places, e.g. 5,275.)
Fixed cost $

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LINK TO VIDEOWhat is the cost formula that Dr. Farish should use for estimating autoclave sterilization costs for next year’s budget?
Formula of total cost

($3,235 × # of instruments) – $5.16($3,235 ÷ # of instruments) – $5.16($3,235 × # of instruments) + $5.16($3,235 ÷ # of instruments) + $5.16($5.16 × # of instruments) – $3,235($5.16 ÷ # of instruments) + $3,235($5.16 × # of instruments) + $3,235($5.16 ÷ # of instruments) – $3,235

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LINK TO VIDEOIf Dr. Farish estimates she will use 1,207 instruments next month, what cost should she include in her budget for instrument sterilization? (Round answer to 0 decimal places, e.g. 5,275.)
Total cost $