Problem 3 (22 points) How long will it take to recover an investment of $10,000 at 10% interest rate under the following independent scenarios? a. $2,400 annually (5 pts) b. An increasing gradient of $1,125 per year (5 pts) c. $200 monthly (5 pts) d. Why are the answers to parts (a), (b), and (c) equal or different? (4 pts) Clearly show the cash flow diagram(s) and the necessary equivalent model(S). (3 pts)