In: Math
A life insurance company invests $7000 in a bank account in order to fund a death benefit of $28 comma 000. Growth in the investment over time can be modeled by the differential equation below, where i is the interest rate and A(t) is the amount invested at time t (in years). Calculate the interest rate that the investment must earn in order for the company to fund the death benefit in 36 years.
dA over dt = Ai