$\backslash$table$[[,$Normal Time,$\backslash$table$[[$Crash$],[$Time$],[($Weeks$)]],$Normal Cost,$\backslash$table$[[$Crash$],[$Cost$]],\backslash$table$[[$Immediate$],[$Predecessor$($S$)]]],[$A$,7,5,$$$2,000,$$$2,500,-],[$B$,6,5,2,200,2,800,-],[$C$,3,2,1000,1400,$A$,$ B$],[$D$,8,7,2,300,2,800,$B$,$ C$],[$E$,6,5,900,1,000,$D$],[$F$,3,2,3,000,4,200,$E$]]$

a$.$ What is the project completion date:

weeks

b$.$ What is the total cost required for completing this project on normal time?

c$.$ What activities are on the critical path:

d$.$ If you wish to reduce the time required to complete this project by $1$ week, which activity should be crashed $,$ and how much will this increase the total cost?

e$.$ What is the maximum amount of weeks that this project can be crashed by $,$ and what is the total overall cost?