Explain how to solve B please!!

Current Attempt in Progress Pharoah 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. 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 eTextbook and Media Attempts: 1 of 5 us What is the estimated fixed power cost each month