Given the following cost and activity observations for Bounty Company's utilities, use the high-low method to determine Bounty's variable utilities cost per machine hour Round your answer to the nearest cent. Cost Machine Hours March $3,016 14,647 April 2,632 9,660 May 2,877 12,195 June 3,543 17,932 Oa: 50.73 Ob. 50.11 Oc. 50.77 Od. SL.10