Principal Amount = P = $250
Interest Rate = r = 9% = 0.09
Time in years = t = 15 years
Value of investment = A = ?
The formula to calculate the value on investment as a result of annual interest is:
![A=P(1+r)^(t)](https://img.qammunity.org/2019/formulas/mathematics/college/o0qzc7j9joxk8emvjq05teydlkjpaopevf.png)
Using the values in the above formula, we get:
![image](https://img.qammunity.org/2019/formulas/mathematics/middle-school/aut4xw3hwtwu5xs2rrf74f673di94glrmi.png)
Thus, at the end of 15 years the value of the investment will be $ 910.62.