Green Forever, a manufacturer of lawn equipment, has preliminary drawings for two grass trimmer designs. Charla Fraley's job is to determine which is better environmentally. Specifically, she is to use the following data to help the company determine the following items. LOADING...

GF Deluxe
PART	RESALE REVENUE PER UNIT		RECYCLING REVENUE PER UNIT		PROCESSING COST PER UNIT		DISPOSAL COST PER UNIT
Metal drive	$3.13		$4.66		$1.16		$0.91
Battery	0.00		3.76		6.29		3.08
Motor housing	3.98		2.86		2.02		1.39
Trimmer head	1.34		0.62		1.01		0.57

Premium Mate
PART	RESALE REVENUE PER UNIT		RECYCLING REVENUE PER UNIT		PROCESSING COST PER UNIT		DISPOSAL COST PER UNIT
Metal drive	$3.29		$4.36		$1.22		$0.52
Battery	0.00		3.08		4.86		2.16
Motor housing	4.03		3.52		2.59		1.77
Trimmer head	1.15		0.82		1.13		0.83

a) Determine the revenue retrieval for the GF Deluxe. The revenue retrieval for the GF Deluxe is $ ___. (Round your response to two decimal places.)

b) Determine the revenue retrieval for the Premium Mate. The revenue retrieval for the Premium Mate is $ ___. (Round your response to two decimal places.)

c) Determine which model is the better design alternative based on revenue retrieval. (Premium mate or GF Deluxe) is the better design alternative based on revenue retrieval.