Applying high low,$$2,186$ per month plus $$53\mathrm{.}13$ per scan.Sask prairies hospital in regina has just hired a new administrator,whois ancious to employ sound management and planning technique in the business affairs of the hospital $.$according she has directed her assistant to summarize the cost structure existing in the various department to secure data for planning purposes.the assistant is unsure how to classify the utilities costs in the radiology department,since these costs do not exhibit strictly variable or strictly foxed cost behaviour.utlitirs costs are very high in the department due to CT scanner that draws a large amount of powe and is kept running at all times.the scanner cannot be turned off due to long warm up period required for its use.when the scanner is used to scan a patient,it consumes an additional brust of power.the assistant has accumulated the following datq on utilities costs and use of the scanner since the beginning of the year.