Answer:
Step-by-step explanation:
Jennie will complete her ride after 1.5 hours, so the function has no utility except for time values between 0 and 1.5 hours.
The domain is the interval [0, 1.5] (hours).
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The range of the function is the set of possible distances along the trail, so will be values between (and including) 0 and 18 miles.
The range is the interval [0, 18] (miles).