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Question 23 2 pts The following information is available for a company's utility cost for operating its machines over the last four months. Month Machine hours Utility cost January 900 5,450 February 1,800 6,900 March 2,400 8,100 April 600 3,600 Using the high-low method, the estimated variable cost per unit for utilities is: [ Select ] Using the high-low method, the estimated total fixed cost for utilities is: [ Select ]