The following information is available for Mazoon company's electricity cost for operating its heavy machinery over the last quarter of the year 2020. Month Machine hours Electricity cost September 1,800 $11.900 October 1,300 $ 5,200 November 4.800 $ 15,200 December 6,500 $ 19,200 Using the high-low method, the estimated variable cost per machine hour for total cost of electricity is approximately a $2.69 b. 50.37 O $2.95 d. $2.86 e. None of the given answers