Question: Sam refuses to retire until his retirement account has a balance of at least $ 400,790 . Sam refuses to make any more deposits in the account. The account currently has a balance of $ 120,089 and earns 6% per year, compounded semi-annually. How long does Sam have before he will retire? The response must be typed, single spaced, must be in times new roman font (size 12) and must follow the APA format.