explain aswers 9,10, and 11. plis

Immediate Predecessor(s) Table for questions 8 toll Activity Optimistic Most likely Pessimistie Time Time Time A 4 5 B 8 11 14 5 7 9 D 4 8 E 3 5 A DB 12 a + 4m + b 6 T-T, Lubart 14 o?= 12 Latest finish Du Crash cost. Crash cost - Normal cost. CC-NO per day Normal time-Crash time NT-CT 8. Using the table, which activity has the largest slack, and how large is that slack? Slack-LS. ES LF-EF A. Activity C; five weeks B Activity C: four weeks C. Activity B; two weeks D. Activity B; three weeks 9. Using the table, what is the probability of completing the project in 17 on fewer weeks? A 7594 B 84% C. 9096 D. 9394 10. Using the table, what is the probability that the project will take 16 or more weeks to complete? 40% B. 50% 60% D. 70% 11. Using the table, if the expected time for activity B is changed to 18 weeks, by how many weeks will the project's expected completion time increase? A3 36 C. 7 D8 stations deside to change