Laborn Inc.'s inspection costs are listed below:

	Units Produced			Inspection Costs
March		163		$	9,658
April		209		$	11,141
May		159		$	9,451
June		232		$	12,435
July		286		$	13,305
August		256		$	12,701
September		258		$	12,824
October		234		$	12,553

Management believes that inspection cost is a mixed cost that depends on the number of units produced. Using the least-squares regression method, the estimates of the variable and fixed components of inspection cost would be closest to: