Answer: S(w) = $25 + $15*w
Step-by-step explanation:
We can model this with a linear equation:
First, she deposits $25 in the savings account, she does this only one time, then this will be the constant term.
Now in each week, she puts another $15, and does this each week after that.
Then we can write this with the model:
S(w) = $25 + $15*w
Where w is the number of weeks that had been passed since the first deposit.
