this is one q

An investment project provides cash inflows of $770 per year for 11 years. a. What is the project payback period if the initial cost is $2,310? 3.00 years 3.03 years 2.85 years 2.91 years b. What is the project payback period if the initial cost is $4,389? c. What is the project payback period if the initial cost is $9,240? 3.01 years Never 4.95 years 5.25 years 1.35 years 4