A cash flow sequence has a receipt of $20,000 today, followed by a disbursement of $18,000 at the end of this year and again next year, and then a receipt of $15,100 three years from now. The MARR is 6 percent. a. What is the ERR for this set of cash flows? b. What is the approximate ERR for this set of cash flows? c. Would a project with these cash flows be a good investment? A cash flow sequence has a receipt of $20,000 today, followed by a disbursement of $18,000 at the end of this year and again next year, and then a receipt of $15,100 three years from now. The MARR is 6 percent. a. What is the ERR for this set of cash flows? b. What is the approximate ERR for this set of cash flows? c. Would a project with these cash flows be a good investment