The controller of Wildhorse Industries has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs Month Total Maintenance Costs $ 2.925 Total Machine Hours 3,880 January February 3,324 4.432 March 3.989 6,648 April 4,986 8,753 May 3,546 5,540 June 5,420 8,870 (a1) Determine the variable-cost components using the high-low method. (Round answer to 2 decimal places e.g. 2.25.) Variable cost per machine hour (1) Determine the variable-cost components using the high-low method. (Round answer to 2 decimal places eg. 2.25.) Variable cost per machine hour $ (22) Determine the fixed cost components using the high-low method. Fixed costs $