Question: Problem 3 Environment Recycling, Inc. must clean up a large automobile tire dump under a state environmental cleanup contract. The tasks, durations (weeks), costs, and

Problem 3 Environment Recycling, Inc. must clean up a large automobile tire dump under a state environmental cleanup contract. The tasks, durations (weeks), costs, and predecessor relationships are shown in the table below. Immediate Pred Activity A B D E F G H I A A C BD D D E F, GH Normal Time 5 12 7 6 8 3 3 4 6 Crash Normal Time Cost 4 $ 400 9 1,000 6 800 5 600 6 1,200 2 800 2 500 3 400 5 900 Crash Cost $ 750 2,200 1,100 1,000 2,200 1,000 650 600 1,300 a. Please identify the critical path. b. What is the length of time to complete the project? C. Which activities have slack, and how much? d. What is the total project completion time and the lowest cost solution if the state wants to complete the project three weeks early

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