answer both please

12. Now let's work backwards. Assume that you will all live until 100 (a good news!), but will have to retire by 65 (a bad news^^). You estimate that you will need to draw at least $3,000 per month of living expenses out of your retirement account after you retire (assume no inflation). Suppose that your retirement account will keep earning 6% APR after you retire. If you want to ensure that your retirement account will not run out of money before the age of 100, how much should you have in your retirement account when you retire at 65?

13. Given your answer to Question 12 and your current age, how much should you save and put into the retirement account per month to achieve the goal at 65? Assume that you can earn 6% APR with monthly compounding on your investments.