I need help solving thisa. Fill in the Predecessor column and complete the Forward Pass using the duration for each activity

b$.$ Complete the Backward Pass, after completing the Forward Pass;

c$.$ Complete a Gantt Chart on the Worksheet with your answers from both Passes.

$2.$ Write a $1$ Page Paper $(300-400$ words$)$ discussing...

a$.$ How the accuracy of Time Estimating leads into an Accurate Forward$-$Backward Pass, and any associated issues with this impact;

b$.$ How the accuracy of the Critical Path and the Gantt Chart can help in developing opportunities for crashing Activities to shorten a project.

$\backslash$table$[[$A$,$B$,$C$,$D$,$E$,$F$],[$Activity$,$Task,Start,Predecessor,Duration $($Days$),],[$A$,$Plan Agenda for Meeting,$\frac{1}{15},-,5,],[$B$,$Reserve Room,$\frac{1}{22},,2,],[$C$,$Finalize Presentation,$\frac{1}{22},,5,],[$D$,$Approve Presentation,$\frac{1}{26},,4,],[$E$,$Create Invitations,$\frac{1}{22},,4,]]$