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Answer:
Step-by-step explanation:
Cost of rental: f(t) = 45 + 5t, where t is the hours of rental
The cost cannot exceed $65.
f(t) = 45+5t ≤ 65
5t ≤ 20
t ≤ 4 hours
Minimum rental time is 1 hour, so minimum charge is f(1) = 45+5·1 = 50
Domain: {1,2,3,4}
Range: {50,55,60,65}