Answer:
B) A person runs x miles at a rate of 12 minutes per miles then walks for 10 minutes is your best answer.
Explanation:
This is the only one that meets all requirements, though the wording is rather poor, in my opinion.
'x" is stated in this statement rather correctly compared to the others.
For A), "A person drives 12 miles each day (x) for 10 days:
x would signify the amount of days: 12x or 12(10) = 120
For C), " A person drives 12 miles plus 10 miles for each additional hour they drive":
x would signify the amount of hour: 10x + 12
For D), "A person runs 12 miles the first day, x miles the second day, and 10 miles the third day":
x would signify the stand-alone value: 12 + x + 10
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