I don’t get this question—please help!

Answer:
Step-by-step explanation:
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Answer:
15-20mile/h
Step-by-step explanation:
d=speed*time
100mile=speed*(5.5 to 6)
100/5.5 to 6=speed
speed= 18.18 to 16.67 mile/h
it is between 15-20mile/h