Answer:
31 is the answer
Step-by-step explanation:
mary will be 18 in 7 years
so 18-5=13 her sister will be
13 in 7 years so 18+13=31 is the answer
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Answer:
31 is the answer
Step-by-step explanation:
mary will be 18 in 7 years
so 18-5=13 her sister will be
13 in 7 years so 18+13=31 is the answer