You decide you want to be a millionaire. You deposit $50,000 in an investment account that earns 9% per year. The money in the account will be distributed to you whenever the total reaches $1,000,000. If you are 27 now, how old will you be when you get the money (rounded to the nearest year)?

I keep getting "error 5" on my BAII. I already have the answer, i just want to learn how to do it on the calculator so please explain step by step for the calculator. thanks