calculate the LS and LF of all of the activities please!

More Info D. \begin{tabular}{ccccc} \hline Activity & Duration (weeks) & Predecessors & ES & EF \\ \hline A & 0.5 & None & 0 & .5 \\ B & 7.5 & None & 0 & 7.5 \\ C & 4 & A, B & 7.5 & 11.5 \\ D & 5.5 & A & 0.5 & 6 \\ E & 3 & C & 11.5 & 14.5 \\ F & 6.5 & D, E & 14.5 & 21 \\ G & 6.5 & F & 21 & 27.5 \\ H & 3.5 & E & 14.5 & 18 \\ \hline \end{tabular} Calcelete Ghe late start and tate finish times for the each activity perfoming the bockward poss. Fil in the thblo below (enter your responsos rounded to one decimer pirce) \begin{tabular}{ccccc} \hline Activity & Duration (woeks) & Predecessors & LS & LF \\ \hlineH & 3.5 & E & & \end{tabular}