Q3 (25 marks) a) An investment project has annual cash inflows of $4,200, $5,300, $6,100, and $7,400. and a discount rate of 14%. a What is the discounted payback period for these cash flows if the initial cost is $7,000? b. What is the discounted payback period for these cash flows if the initial cost is $10,000? c. What is the discounted payback period for these cash flows if the initial cost is $13,000