Some help me- Math

Chris tells Adam that the decimal value of −1/13 is not a repeating decimal. Is Chris correct?
A) No, because the fraction has a decimal period of 3
B) No, because the fraction has a decimal period of 6
C) No, because the fraction has a decimal period of 9
D) Yes, because the fraction can be written as a terminating decimal.

How do I figure this out??

asked by Anonymous
  1. 0.07692307692307692307692..... so what is the decimal period?

    posted by bobpursley
  2. 3???

    posted by Anonymous
  3. its b!!

    posted by jgf

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