If two numbers are opposites and one number is 32 what is the other number

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

Extra points! find the missing dimension! need asap