(b) Kelly and Sam both competed in a swimming gala. Kelly swam 5 of a mile, Sam ran 2 of a mile. Who swam further? (show your working)
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Answer (b)
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Question b.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?