Answer:
Option D.
Explanation:
So first you got to convert all the options into mi/hr then pick the highest one:
Steps:
456.5 mi/hr (dont do anything to this because it is already in mi/hr)
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0.3 mi/s (this one you got to multipy 0.3 by 3600 to find the mi/hr. the reason being is that there are 30 seconds in a minute and 60 minutes in an hour 60 x 60 = 3600)
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28 mi/hr (dont do anything to this because it is already in mi/hr)
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28 mi/min (this one you got to multiply 28 by 60 to find the mi/hr. The reason bing is that there are 60 minutes in an hour)
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Conversons:
456.5 mi/hr
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1080 mi/hr
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28 mi/hr
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1680 mi/hr
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Answer:
1680 mi/hr = 28 mi/min
So the answer is option D.