Problem 2 (25 points Marathon Oil is planning operating an oil fracking project with Alpek, a Mexican oil and gas company. The project will run for the next 12 years with an initial investment of $625,000 and annual operating cost of $120,000 for the next 6 years, and $140,000 in years 7, 8, and 9 while Marathon Oil plans to spend 50% of the operating cost in year 8 for the last three years of the project. Another alternative project Marathon oil is considering is with Imperial Oil, a Canadian company, with an initial investment of $1.5 M and annual operating cost of $65,000 for the first 7 years and $82,000 per year for the remaining five years. Marathon Oil also plans to sell some of its equipment used for the fracking at the end of the project life. The salvage value (S) for those equipment which decreases by 12% per year, is estimated by the following equation: S-initial investment x (1 0.12)" ; where n is the project life While the salvage for the second alternative is 31% of the initial investment with Imperial oil a) Determine the engineering economic symbols for each Alternative b) Draw the Cash flow Diagram for each Alternative c) If both projects are operated at a MARR of 10%, which of th e project would you advise Marathon Oil to or