Answer these Questions

A recent environmental engineering graduate is try- ing to decide whether he should keep his presently owned car or purchase a more environmentally friendly hybrid. A new car will cost $26,000 and have annual operation and maintenance costs of $1200 per year with an $8000 salvage value in 3 years ( which is its estimated connomic service life) The presently owned car has a resale value now of $5000; one year from now it will be $3000, two years from now $2500, and 3 years from now $2200. Its operating cost is expected to be $1900 this year, with costs increasing by $200 per year. The presently owned car will definitely not be kept longer than 3 more years. Assuming used cars like the one presently owned will always be available, should the presently owned car be sold now, I year from now, 2 years from now, or 3 years from now? Use annual worth calculations at I = 10% per year and show your work.The independent project estimates below have been developed by the engineering and finance managers. The corporate MARR is 8%% per year, and the capital investment limit is $4 million. Se- lect the economically best projects using the PW method and (a) hand solution and (b) spreadsheet solution. Project NCF, Project Cost, 5 M Life, Years $ per Year -15 360,00D -3.0 10 600,000 -13 520,000 -20 820,GOD Use the PW method to evaluate four independent projects. Select as many as three of the four proj- ects. The MARR is 12% per year, and up to $16,000 in capital investment fiands are available. Project ment, 5 -5000 -8,000 -9,000 - 10,000 cars 5 NOF Estimates, $ per Wear 1000 500 50DO 1700 SODO 2400 500 2000 3000 500 17,00D 3900 10,500\f\f\f\f