225, the square root of 225 is 15
Answer:
4x= 40
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The answer is 3 because 4x6=24 and add 3 is 27 so she will need 3 dollars.
Answer:
Here c represents the total number of children in choir.
As per the statement:
Total number of boys in choir = 12
It is also given that: Three sevenths of a children's choir are boys.
⇒ Total number of boys = 
or

By cross multiply we have;
84 = 3c
Divide both sides by 3 we have;
c = 28
Therefore, the total number of children in choir is 28 children