An investment project provides cash inflows of $1,200 per year for eight years. (Enter rounded answers as directed, but do not use the rounded numbers in intermediate calculations. Enter 0 if the project never pays back. Round your answers to 2 decimal places Requirement 1: What is the project period if the initial cost is $3,950? Payback period ????years Requirement 2: What is the project payback period if the initial cost is $5,000? Payback period ????years Requirement 3: What is the project payback period if the initial cost is $10,600? Payback period ????years