Answer:
Maria is 84 months old.
Multiply the years(y) by every 12 months that pass(m).
note that y is 7, and m is 12, because we count every 12 months that pass for 7 years.
84 months
Explanation:
Maria is 7 years old, there are 12 months in a year, multiply 12 by 7.
12 * 7 = 84
Maria is 84 months old
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