Given the following cost and activity observations for Smithson Companys utilities, use the high-low method to calculate Smithsons fixed costs per month. Do not round your intermediate calculations.

	Cost	Machine Hours
January	$52,200	20,000
February	75,000	29,000
March	57,000	22,000
April	64,000	24,500

Select one:

a. $1,533

b. $2,530

c. $22,800

d. $50,600