The controller of Hall Industries has collectedThe controller of Hall Industries has collected

the following monthly cost data for use in

analyzing the behavior of maintenance costs.

$($a$1)$

Your answer is incorrect.

Determine the unit variable costs using the

high$-$low method for this mixed cost.

$($Round answer to $2$ decimal places e$.$g$.$

$2\mathrm{.}25.)$

the following monthly cost data for use in

analyzing the behavior of maintenance costs.