3/4 of 8 miles is 6, so he ran 6 miles of the race.
Answer:
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An exponential function is the function f(x)=ab^x, <span>where a≠0, </span>b>0 and b<span> ≠1, and </span>x is any real number. Important property of the exponential function is that it grows by common factors over equal intervals. In the real world exponential functions can model <span>populations, electricity, temperatures, bank accounts, credit payments, compound interest, ...</span>
