Answer:
9.00%
Step-by-step explanation:
If Ken Francis' original investment (P) is $2,745 and the future value (FV), after a period (n) of 15 years, is $10,000, the annual interest rate (r) for this investment is given by:
![FV = P*(1+r)^n\\r=\sqrt[n]{(FV)/(P)} -1\\r=\sqrt[15]{(10,000)/(2,745)} -1\\r=0.0900 = 9.00\%](https://img.qammunity.org/2020/formulas/business/college/4xpgt41mo0znd8pq5dm4vbc2m5ooksdvm5.png)
The annual rate of interest for this investment is 9.00%.