please answer same format as question

Dave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also be determined. Here are the activity times: Immediate Predecessor(s) Time Activity (weeks) A 7 B 6 Activity E F Time (weeks) 5 5 11 7 Immediate Predecessor(s) B B C, E DF 2 A G H D 3 A Dave's earliest start (ES) and earliest finish (EF) are: ES EF Activity A 7 B 0 9 7 11 I T M 0 0 6 G 22 18 22 I 0 18 Dave's latest start (LS) and latest finish (LF) are: LS LF Activity H 15 G 11 F 10 E 6 D 12 C 9 B O 0 A 2 Dave's latest start (LS) and latest finish (LF) are: Activity LF LS 15 11 F 10 E 6 D 12 B 0 A 2 The slack times are: Slack Activity A B C D 1 F G H The slack times are: A-C-G - B-F-H A-D-H B-E-G -G The activities on the critical path are The total project completion time for Dave = weeks