Respuesta :

Answer:

7 times older

Explanation:

because you have to do 21/3 and that make 7

Answer:

If you would do 21 - 3 than that is 18, but if you do 3 times 7 that gives you 21, I'm not sure which one your asking for. It's either 18 or 7

Explanation:

Hope this helps!

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