Final answer:
The question deals with the calculation of Net Present Value (NPV) to evaluate the profitability of investment projects such as Project Zeta. It also discusses investment decisions based on different interest rates and the return to society, indicating the financial strategic planning of a company.
Step-by-step explanation:
The question revolves around the financial evaluation of potential investment projects by calculating Net Present Value (NPV). For Project Zeta, the NPV process uses a discount rate that corresponds to the company's required rate of return (in this case, 10%) to value future cash inflows and outflows and determine if the project is a profitable investment. This financial decision is based on whether the NPV is positive; with a given NPV of $185.24 for Project Zeta, the company deems it profitable. When considering different investments while adjusting for capital costs and societal return, the firm may decide to invest a significant amount—such as $102 million or $183 million—based on shifting effective rates of return, even considering scenarios where rates rise to 9%.