Answer: $32.25
Step-by-step explanation:
Assuming this is compound interest, the value of the investment after a period of time can be calculated with the future value formula:
Value = Investment * ( 1 + rate) ^ no. of periods
Value ₄₀ = 2,000 * ( 1 + 0.04%)⁴⁰
Value ₄₀ = $2,032.25
Interest earned = Value at 40 years - Initial investment
= 2,032.25 - 2,000
= $32.25
