Supply costs at Lattea Corporation's chain of gyms are listed below:

	Client-Visits	Supply Cost
March	11,649	$28,563
April	11,445	$28,397
May	11,977	$28,821
June	12,200	$28,896
July	11,709	$28,624
August	11,195	$28,223
September	11,989	$28,822
October	11,680	$28,580
November	11,828	$28,705

Management believes that supply cost is a mixed cost that depends on client-visits. Using the high-low method to estimate the variable and fixed components of this cost, those estimates would be closest to:(Round your Variable cost per unit to 2 decimal places.)

	$1.25 per client-visit; $13,664 per month
	$0.67 per client-visit; $20,722 per month
	$0.71 per client-visit; $20,217 per month
	$2.36 per client-visit; $28,625 per month