Crane Co. gathered the following information on power costs and factory machine usage for the last six months: Using the high-low method of analyzing costs, answer the following questions and show computations to support your answers. A. How much is the estimated variable portion of power costs per factory machine hour? B. How much is the estimated fixed power cost each month? C. If it is estimated that 18,000 factory machine hours will be run in June, what is the expected total power costs for June