To get the amount of money she will have in w weeks ;
Multiply her deposites each week by w
That is;
$15.50 x w =$15.50w
Then add it to the money she is having in her saving account
That is;
$587.66 + $15.50w
Therefore; the amount of money in her account in w weeks is;
$587.66 + $15.50w
