Using the high-low method, compute the variable cost of electricity per machine hour. (Round unit cost to 2 decimal places, eg. 52.75.) Variable cost $ per machine hour eTextbook and Media Attempts: 1 of 3 used (b) Compute the total fixed cost of electricity. (Round answer to 2 decimal places, es. 52.75.) Fixed cost Represent the electricity cost function in equation form. (Round answers to 2 decimal places, e.g. 52.75.) Total cost =$ MH+$ eTextbook and Media Attempts: 0 of 3 used (d) What is the expected electricity cost when 730 machine hours are used? (Round answer to 2 decimal places, e.g. 52.75. ) Total cost \$ Sunland, Inc., has collected the following information on its cost of electricity