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Aww... I have a dog named Tilly, *Ahem* It would take 36 seconds. Hope this helpz...
jbakker
For this question you need to find the Lowest Common Multiple (LCM) of 9 and 12. We do this by finding the prime factorization of each number.
9 = 3 x 3
12 = 3 x 4
The LCM is found by multiply the highest number of each factor.
LCM = 3 x 3 x 4 = 36.

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