Direct Labor hours	Inspection Cost
February	4,944	$59381
March	4875	$58767
April	4918	$59164
May	4937	$59299
June	4903	$59022
July	4943	$59363
August	4942	$59342
Septmeber	4949	$59409
October	4966	$59565

The management of Greens Corporation would like to have a better understanding of the behavior of its inspection costs. The company has provided the following data:

Management believes that inspection cost is a mixed cost that depends on direct labor-hours.

a. What is Greens cost formula?

b. If Greens expects to incur 5,010 direct labor hours next month, what will the estimated inspection cost be using the high-low method?