Final answer:
The future value of Hellen's investment is approximately $23270.37.
Step-by-step explanation:
To find the future value of Hellen's investment, we can use the formula for compound interest.
The formula is: FV = P(1 + r/n)^(nt), where FV is the future value, P is the principal (initial investment), r is the annual interest rate (as a decimal), n is the number of times interest is compounded per year, and t is the number of years.
In this case, Hellen invested $20,000, the interest rate is 4.68% or 0.0468, and it is compounded monthly (n=12) for four years (t=4).
Substituting the values into the formula, the future value is:
FV = 20000(1 + 0.0468/12)^(12*4)
Simplifying the equation gives:
FV ~ $23270.37