Answer:
Enterprise charges more for a 6 day rental. ($284 for Hertz and $294 for Enterprise). Avery would save $4 if he rented with Hertz for 4 days.
Explanation:
H = Hertz
E = Enterprise
x = Days rented
T = Total cost for x days, in $
Hertz: TH = 42x + 32
Enterprise: TE= 45x + 24
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6 Day Rental:
TH = 42*(6) + 32, = $284
TE = 45*(6) + 24 = $294
4 Day Rental:
TH = 42*(4) + 32, = $200
TE = 45*(4) + 24 = $204