$\backslash$table$[[,\backslash$table$[[$Time$],[($weeks$)]],\backslash$table$[[$Immediate$],[$Predecessor$($s$)]],$Activity,$\backslash$table$[[$Time$],[($weeks$)]],\backslash$table$[[$Immediate$],[$Predecessor$($s$)]]],[$A$,6,-,$E$,3,$B$],[$B$,7,-,$F$,7,$B$],[$C$,3,$A$,$G$,9,$C$,$ E$],[$D$,1,$A$,$H$,8,$D$,$ F$]]$

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

$\backslash$table$[[$Activity$,$ES$,$EF$],[$A$,,6],[$B$,0,$