7. (10 points) The Solar Calculator Company plans to invest $5 million into a new factory that makes calculators. $2 million is spent annually on fixed costs. A solar calculator is produced for $5 per unit and sells for $20. What is the yearly sales level at which the factory will break even (i.e., NPV = 0) if it operates for three years and the cost of capital is 12 percent? (Assume that income and expenses occur at the year's end. Assume no taxes.)

4. (10%) For her estate in Connecticut, Marsha Jones purchased a used Mercedes horse transporter. The price was $35,000.00. The goal is to reduce the cost of renting a horse transporter. For $200 per day plus $1 per mile, Marsha had been hiring a transporter every other week. The majority of the journeys are between 80 and 100 miles long. Joe Laminitis, the driver, often receives a $40 gratuity from Marsha. She will just need to pay for maintenance and diesel fuel with the new transporter, which costs around $0.45 per mile. The annual insurance premium for Marsha's transporter is $1,200. When Marsha's horse Spike is ready to retire in eight years, the transporter will most likely be worth $15,000 (in real terms). Is the transporter a positive-NPV investment? Assume a nominal discount rate of 9% and a 3% forecasted inflation rate. Marsha's transporter is a personal outlay, not a business or financial investment, so taxes can be ignored.

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