please help!

ewing Saved Work Revert to Last Response DETAILS MY NOT Your math professor has decided to retire and return to his jetsetting life style. He wishes to establish a fund from which he can withdraw $4,000 per month for the next 20 years. If the fund earns 3% per year compounded continuously, how much money does he need now to establish the fund? 48,000 (0.6 - 1) 0.03 48,000 (0.5 + 1) 0.03 12-20 0.03 (1 - e-0.5) 12.20 0.03 (60.5 - 1) 48,000 0,03 (1 - e-0.5)