2. John is now 30 and wants to invest $100 in a stock mutual fund every week for his retirement (start one week from today). He plans to invest his money until he retires at 65. If he can expect to live until 95. how much can he withdraw monthly for his expenses after his retirement? He will start withdrawing his money immediately after he turns 65 and his account will be down to zero when be turns 95. Assume the return is 5% per year throughout. (Hint: compounding frequency is different before and after the retirement) [5 points)