5 9 9- Consider a factory that must have an air cleaner that is mandated by law. There are two choices: The "Cadillac cleaner" costs $4,000 today, has annual operating costs of| $100, and lasts 10 years. I The "Cheapskate cleaner" costs $1,000 today, has annual operating costs of $500, and lasts-5 years. I Assuming a 10% discount rate, which one should we choose? (10 Points) 1 Which of the following hou