An investment project provides cash inflows of $630 per year for eight years. a. What is the project payback period if the initial cost is $1775? (Enter O if the project never pays back. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What is the project payback period if the initial cost is $3,450? (Enter O if the project never pays back. Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) e. What is the project payback period of the initial cost is $5,200? (Enter o if the project never pays back. Do not round Intermediate calculations and round your answer to 2 decimal places, o... 32.16.) a. Payback period b. Payback period c. Payback period 2.82 years 5.48 years years