I am completely lost!

Data for a project is shown below: Activity Duration Precedence (months) A 3.00 B 1.00 2.00 A D 3.00 A E 2.00 B F 1.00 C, D, E G 1.00 E Budget or Pind. Cost 15000 5000 10000 21000 32000 5000 5500 Percent Completed 100 100 90 100 90 0 0 The project started on June 1st. The project has a planned duration of 7 months. Table above shows percent activities completed as of end of November. Data below are planned cost and actual cost (spent) from June to November: Planned Actual Month Cost Cost June 5000 6000 July 5000 6000 5000 8000 Sept 12000 15000 Oct 28000 30000 Nov 28000 30000 a) Compute critical ratio. (4 points) b) Based on current schedule performance level, estimate schedule delay in months) for the project. (2 points) Aug