how do you find the EST, EFT, LST, LFT and slack

7-13 Terry Anderson is responsible for planning a local political campaign. A variety of activities need to be coordinated in order to be prepared for the upcoming election date. The following table describes the rela- tionships between these activities that need to be completed, as well as estimated times: ACTIVITY IMMEDIATE PREDECESSORS YEIME (WEEKS) 3 B 5 A 7 D A