We know the formula for compound interest as
![A=P(1+(r)/(n))^(nt)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/hn0qxctrr2hvd4ilxunbz6lfdd2lzo1t0v.png)
Now, we have been given that Ellen has $125. It means we have
P = $125
From the given directions, we have
![r=0.085\\ t=8\\ n=1](https://img.qammunity.org/2019/formulas/mathematics/college/yueg3lu7n0mn5bigb3eh9e53i6q9u54tdm.png)
On substituting these values in the above mentioned formula, we have
![A=125(1+(0.085)/(1))^(1* 8)\\ \\ A=\$240.08](https://img.qammunity.org/2019/formulas/mathematics/college/yfkhtdw1slxyiz2rn4vuiz4ywayh8eyml5.png)
Therefore, Ellen would have $240.08 after 8 years.