Discuss the below:
A) Identify the critical path by forward and backward paths. For the tasks that are not on the critical path, identify their slacks.
At the end of 8th day, assume the following progress of the project:
a. Tasks A, B, D are 100% completed, and the actual costs spent for them are $200, $500 and $450, respectively.
b. Task C is 80% completed, and already cost $100
c. Task E is 66.67% completed, and already cost $100
d. Task F is not started yet, and didn't cost anything either.
Evaluate the progress of the project by filling the following blanks (both in the table and in the sentence below the table):
B) The whole project is ____ ("ahead of" / "behind") schedule, and ____ ("above" / "under") budget.
C) Find the cost-effective way to reduce the completion time to 9 days.