Hi could you please help me solve this question using a financial calculator rather than the equations (I find those confusing). The answer for this question is monthly payment of 68.5$.

3.) Mary is 25 years old and just starts to work. She plans to work until 65 years old and then retires. After retirement, Mary plans to be able to draw $ 3,000 per month until she gets to 80 years old.. In order to enable Mary to do so, she decides to contribute to a RRSP via a life insurance company that requires her to make equal monthly payments with the first payment starting a month from now. Furthermore, she has $ 20,000 that she also wants to put into the plan. Assume interest rate stays constant over the next 55 years at 6% per year, determine the monthly payment required for this policy.