A mining company plans to mine a beach for rutile. To do so will cost $14 million up front and then produce cash flows of $7 million per year for five years. At the end of the sixth year the company will incur shut-down and clean-up costs of $6 million. If the cost of capital is 13.0%, then how many internal rates of return does this project have? Calculate the MIRR for this project using each of the three methods.