Answer: m = 10
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Curt because if his time was 8/9 of Ian's time then that means he ran the mile in a fraction of Ian's time, so he finished the mile quicker. Curt ran faster.
definition is valid since center is exactly 1radius away from any point on the outersurface.
other figures do not fit this defn
0.2 would be 20% written as a decimal.
