$\backslash$table$[[$Activity$,$Time $($weeks$),$Immediate Predecessor$($s$),$Activity,Time $($weeks$),$Immediate Predecessor$($s$)],[$A$,6,-,$E$,4,$B$],[$B$,6,-,$F$,7,$B$],[$C$,3,$A$,$G$,9,$C$,$ E$],[$D$,1,$A$,$H$,7,$D $,$ F$]]$

Dave's earliest start $($ES$)$ and earliest finish $($EF$)$ are:

Dave's latest start $($LS$)$ and latest finish $($LF$)$ are:

The slack times are:

The activities on the critical path are

The total project completion time for Dave $=20$ weeks.