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Raytheon Corp. is building a munitions facility that requires a $100 million up-front investment, payable immediately. The plant will generate after-tax prots of $60 million per year, received at the end of each of the rst 4 years and then will require a simultaneous $50 million after-tax clean-up cost at the end of the fourth year. Calculate the Net Present Value (NPV) of the investment project assuming a 10% (annual) discount rate