Clare has 54$ in her bank account. A store credits her account with a 10$ refund. How much does she now have in the bank?
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The sum of polynomials involves adding the polynomials
The other polynomial is
The sum of the polynomials is given as:
One of the polynomials is given as:
Represent the other polynomial with Q.
So, we have:
Substitute the expressions for P and Sum
Make Q the subject
Evaluate like terms
Hence, the other polynomial is
Read more about polynomials at:
Since the formula for the base of the cylinder is 
, multiplying that by 10 we get 
. Hope this helps!