Please show all intermediate steps and formulas used. Use excel to complete the problem.

Suppose you are offered a project with the following payments: Year Cash Flows 0 $7,200 1 -3,900 2 -2,600 3 -1,700 4 -1,500 a. b. c. What is the IRR of this offer? (Do not round Intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) If the appropriate discount rate is 9 percent, should you accept this offer? If the appropriate discount rate is 21 percent, should you accept this offer? d-1. What is the NPV of the offer if the appropriate discount rate is 9 percent? (A negative answer should be indicated by a minus sign. Do not round Intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) d-2. What is the NPV of the offer If the appropriate discount rate is 21 percent? (A negative answer should be Indicated by a minus sign. Do not round Intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) IRR % b. Accept/Reject c. Accept/Reject d-1. NPV d-2. NPV