the following table:

$\backslash$table$[[$Activity$,\backslash$table$[[$Normal$],[$Time $($weeks$)]],\backslash$table$[[$Crash$],[$Time $($weeks$)]],\backslash$table$[[$Normal$],[$Cost$]],\backslash$table$[[$Total Cost$],[$with$],[$Crashing$]],$Immediate Predecessor$($s$)],[$A$,4,3,$$$2,200,$$$2,850,-],[$B$,2,1,$$$2,300,$$$2,900,-],[$C$,3,3,$$$600,$$$600,-],[$D$,8,4,$$$2,300,$$$2,620,$A$],[$E$,6,3,$$$800,$$$1,175,$B$],[$F$,3,2,$$$3,400,$$$4,900,$C$],[$G$,4,2,$$$1,600,$$$2,000,$D$,$ E$]]$

a$)$ Based on the given information regarding the activities for the project, the project length $=$ weeks.