answer with details and formula

Question 2: As part of her job as a cost analyst, Hana Hisham collected the following information concerning the eperations of the Machining Departinent: Required: a) Calculate the variable cost per machine hour (unit). b) Calculate the total fixed costs. c) Use the high-low method to determine the estimating cost function with machine hours as the cost driver: ( 2 marks) d) If June's estimated machine hours total 2,400 , what are the total estimated costs of the Machining Department? (limark) e) Consider variable cost per machine hour "b" calculated in (a) above. If it takes two (2) machine hours to produce one (1) unit and a total of 200 units are produced, then calculate the total variable cost. (1 mark) What is the main advantage of using the high-low method for cost estimation? (1 mark)