Maintenance costs at a Southern Belle Corporation factory are listed below Machine Hours Maintenance Cost ril May June July August September October November December 3,627 3,588 3,637 3,638 3,572 3,611 3,644 3,609 3,669 $ 54,384 $ 53,980 $ 54,453 $54,491 53,843 $ 54,196 54,550 $54,181 $ 54,767 Management believes that maintenance cost is a mixed cost that depends on machine hours. Using the high-low method, calculate the following: Required: (Show your work!) a) Compute the variable rate per machine hour and round off to the nearest whole cent. b) Compute the fixed component and round off to the nearest whole dollar c) What is the cost formula for the maintenance cost? d) Using the cost formula calculated in part c), compute the maintenance cost if the factory used 3,595 machine hours