Westerville Company accumulates the following data concerning a mixed cost, using units produced as the activity

level.

$($a$1)$

Compute the unit variable costs using the high$-$low method. $($Round answer to $2$ decimal places e$.$g$.2\mathrm{.}25.)$

Unit variable costs $

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$($a$2)$

The parts of this question must be completed in order. This part will be available when you complete the part above.

$($b$)$

The parts of this question must be completed in order. This part will be available when you complete the part above.

$($c$)$

The parts of this question must be completed in order. This part will be available when you complete the part above.