The controller of Sheridan Industries has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs.

Month		Total Maintenance Costs			Total Machine Hours
January		$2,550			330
February		2,850			380
March		3,450			530
April		4,350			660
May		3,050			530
June		5,510			730

(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

$enter the Variable cost per machine hour in dollars