Answer:
111 months old.
Step-by-step explanation:
you first divide 12 by four giving us 3.
then times 9 by 12. that gives us 108.
then add 108 + 3 to give us the final results.
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111 months old.
A year is 12 months.
9x12=108
Then add 3 to 108.
= 111
