Final answer:
The annual compounded return on investment is approximately 12.6%.
Step-by-step explanation:
To calculate the annual compounded return on investment, we can use the formula:
Annual Compounded Return = (Final Value / Initial Value)^(1/n) - 1
Plugging in the values from the question:
Initial Value = $85,000
Final Value = $484,050
n = Number of years = 20
Substituting the values into the formula:
Annual Compounded Return = ($484,050 / $85,000)^(1/20) - 1
Calculating this expression, we find that the annual compounded return on investment is approximately 12.6%.