for estimating round both the price of shoes and the percentage to round numbers

97.65 is close to 100, so use 100 for the price of shoes

68% is close to 70 so use 70%

  then multiply 100 by 70 %,

100 *70% = 70 dollars

  so isaac would pay around 70 dollars

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Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b