6b. You are also considering a second business opportunity: Supplying fish, fresh from the bottom of the Charles River, to Harvard Dining Services, for the next three years in return for an up-front payment from them of $15,000. You figure it will cost you $5,000 a year in supplies to provide this culinary joy. So, the revenue and costs of the project can be summarized as follows: Immediate and only revenue: $15,000 Costs in Year 1: $ 5,000 Costs in Year 2: $ 5,000 Costs in Year 3: $ 5,000 What is the project's internal rate of return (IRR)? Provide an explanation and show your calculations.