please answer all 4 multiple choice questions

Question 21 Which of the following refers to the earning of interest on interest? Recurring of future value Competing of project returns Earning of time value Discounting of annuity factor Compounding of interest Question 22 A responsibility center in which a manager is responsible for both revenues and costs is a(n) cost center. revenue center profit center. investment center None of these Question 23 A responsibility center in which a manager is responsible for revenues, cost, and investment is a(n) cost center revenue center. profit center investment center None of these Which of the following is a disadvantage of postaudits? They evaluate profitability rather than cash flows. They may point to the need for additional funding for the project. They tend to hold managers accountable for capital investment decision making. The assumptions driving the original analysis may be invalidated by changes in the actual operating environment. All of these