Problem 9.7(D): List of all possible paths & Total Slacks from Start to finish for each path. *Which activities are on the critical path? What is the total slack along the critical path? Prob. 9-7: Initial ES 1 EF SL LS ES SL LS ES SL LS KEY 10 LF ' Start 0 LF EF ES 2 12 EF Activity-on-Node Network Diagram (Drawn by Dr. Musa) ES 3 EF SL Description ID SL LS 7 LF EF Description DUR LF LS 15 ES 4 EF SL Description LS 4 ES SL LF 5 LF EF Description LS 6 LF ES 6 EF SL Description LS 12 LF ES 7 SL EF Description LS 7 LF ES 8 SL Description LS 9 EF LF