Answer:
4 1/2 hours
Explanation:
RATIO:
Miles Hours
4 1
8 2
12 3
16 4
18 4 1/2
You need to get from 16-18 so you have to get 4-2 and 1 hour to 1/2 hour.
18/4 = 4.5
it would take you about 4 hours and 30 minutes to walk 18 miles
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