The cash flows associated with an investment project are an immediate cost of $1100 and benefits of $1400 in one year, $700 in two years, and $1300 in three years. The cost of capital (WACC) is 10%. What is the project's NPV?

What is the simple (undiscounted) payback period in years for a $100,000 project with expected cash flows of $15,000 each of the first two years and $10,000 for each year after.