Ivanhoe Corp. has collected the following data concerning its maintenance costs for the past 6 months. Units Produced 18,700 33,344 37,512 22,924 41,680 39,596 Total Cost July August September October November $39,712 50,016 57,310 40.126 77,629 64,604 (a1) Compute the variable cost per unit using the high- low method. (Round answer to 2 decimal places, e.g. 2.25.) Variable cost per unit Attempts:0 of 4 used C Check Answer (a2) The parts of this question must be completed in order This part will be available when you complete the part above