Can some please help me with these practice questions i can't get to the right answer. thanks!

Suppose a company had an initial investment of $40,000. The cash flow for the next five years are $17,000, $15,000, $17,000, $17,000, and $19,000, respectively. The interest rate is 8%. What is the discounted payback period? Number (Enter only whole numbers) Lake Craft is considering investing in a cruise ship with an expected life of 10 years that costs $715 million and will produce net cash flows of $16 million per year . Lake Craft's cost of capital is 1 1 % . Enter your answers rounded to 2 DECIMAL PLACES . What is the payback period ?! Number What is the net present value ( NPV ) of the project ?* Number million ( Enter your answer in millions of dollars )