AMD Company, a large conglomerate firm, plans to build a new tollway. The cost (NINV) of the project is expected to be $3.960 billion. Net cash inflows are expected to equal $982.075 million per year. How many years must the firm generate this cash inflow stream for investors to earn their required 20 percent rate of return? Around 10 years Around 9 years Around 7 years Around 8 years