the activity times:

$\backslash$table$[[$Activity$,$Time $($weeks$),$Immediate Predecessor$($s$),$Activity,Time $($weeks$),$Immediate Predecessor$($s$)],[$A$,5,-,\frac{?}{\text{b}\text{a}\text{r}}(E),5,$B$],[$B$,6,-,$F$,7,$B$],[$C$,2,$A$,$G$,11,$C$,$ E$],[$D$,2,$A$,H,8,$D$,$ F$]]$

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

$\backslash$table$[[$Activity$,$ES$,$EF$],[$A$,,5]]$