Industries is installing a new computer system. The activities, the activity times, and the project network die

$\backslash$table$[[$Activity$,$Time$],[$A$,3],[$B$,6],[$C$,2],[$D$,5],[$E$,4],[$F$,3],[$G$,9],[$H$,3]]$

The critical path calculation shows B$-$D$-$E$-$F$-$H is the critical path, and the expected project completion time is $21$ weeks. Afte necessary. The following information is relevant.

$\backslash$table$[[,$Time $($weeks$),$Cost $($$$)],[$Activity$,$Normal,Crash,Normal,Crash$],[$A$,3,1,900,1,700],[$B$,6,3,2,000,4,100],[$C$,2,1,500,1,000]]$