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For questions that deal with possible errors in a specific statement of a specified book, article, website, etc. These questions should always include a complete reference (see tag wiki for format).

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How many significant numbers(figures) are in repeating decimal (105-32)×5/9=40.5555...? [closed]

Source: Basic Chemistry, Steven S. Zumdahl, Donald J. DeCoste Referring to the above, rule it seems $(105-32)\times\frac{5}{9}=40.5555\ldots$ has infinitely many significant figures. Am I correct?
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