Respuesta :

First you need to find out how many people there are. If it is her and her two sisters, this is 3 people.

Divide 21 by 3

21/3

Which gives you

7

This means they each got $7 to spend.
Hope this helps!

Answer:

7

Step-by-step explanation:

So its three girls and each of them get the same amount. All you really have to do is divide 21 by 3 which is 7.

They each get to spend $7.