Kindly answer all please.

Predecessor Lab Activity 1: (10 marks) For the following table of information: Activity Duration A 12 days B 11 days C 16 days D 26 days E 14 days F 12 days G 13 days H 12 days A A B A D, E, F, H a) Draw the network diagram. b) Find the critical path. c) Find out all respective dates for ES,EF.LS.LF, SLACK/Float Lab Activity 2: (15 marks) For the following table of information: Activity Duration Predecessor Start (St) O days A 72 days St B 35 days St 32 days St D 42 days St E 54 days A F 35 days B G 38 days E, F H 59 days G I 40 days C D J 72 days I K 35 days J L 40 days I M 72 days L N 35 days M End 0 days H, KN a) Draw the network diagram. b) Find the critical path c) Apply the PERT, given that: Example Node Activity A; Optimistic time(O)=minus 10 day Most likely time(M)=> A = 72 days Pessimistic time(P) = plus 40 days d) Find out all respective dates for ES,EF.LS.LF, SLACK/Float