Blossom Co. gathered the following information on power costs and factory machine usage for the last six months: Month Power Cost Factory Machine Hours January $29.230 16,200 February! 37,320 22,200 March. 33,715 19,100 April 27,055 15,500. May 24,730 13,900 June 21,500 10,900 Using the high-low method of analyzing costs, answer the following questions and show computations to support your answers. (a) What is the estimated variable portion of power costs per factory machine hour? (Round answer to 2 decimal places, e.g. 15.25) Variable power costs $ per factory machine hour