The following is a table of activities associated with a project at Ratay Isha's software firm in Chicago, the durations, what activities each must procede and the crash cost to reduce duration per week Duration Crash Activity weeks) Precedes Cost Week A (start) $380 3120 $200 $140 Fend) $400 Suppose that Rafay is only given 7 weeks (instead of 10) to complete the project. By how many weeks should each activity be crashed in order to meet the deadline? Assume that you can crash an activity down to o weeks duration Each Activity Activity Should be Reduced BY (weeks) week(s) week(s) week(s) week(s) week(s) Vhat is the total crashing cost? $ (Enter your response as a whole number.)