You are considering various retirement plans. Your goal is to have a lump sum of $3,000,000 available in the bank') when you retire at age 67. The various plans, with their payment schedules, are listed below. In each case, calculate the payment(s) that must be made into the plan to ensure that you have the $3,000,000 available. For each plan, you may assume that your opportunity cost of funds is 6% per year; for each plan, you may assume that the phrase "at age XX means the same thing as "on your XX'th birthday". Plan 1: Single lump sum at age 25 Plan 2: Single lump sum at age 50 Plan 3: Equal annual payments, commencing at age 31 and ending at age 67 Plan 4: Equal annual payments, commencing at age 51 and ending at age 67 Plan 5: Equal annual panicky payments, commencing at age 60 and ending at age 67