Assignment $-$ Project management $($no uncertainty$)$

Question $1$

$\backslash$table$[[$Activity$,$Time $($days$),$Precedence$],[($A$)$ Party Planning $($e$.$g$.$ Event Theme, # of Guests$),5,-],[($B$)$ Arrange Party's Venue,$10,($A$)],[($C$)$ Hire Caterer $/$ Bartender,$5,($A$)],[($D$)$ Hire a Band,$7,($A$)],[($E$)$ Select, Address & Send Invitations,$3,($B$)],[($F$)$ Plan Food & Drink Menu,$6,($C$)],[($G$)$ Band Practice Set List,$10,($D$)],[($H$)$ Confirm Guest List $($RSVP$),15,($E$)],[(1)$ Off$-$site Food & Drink Preparation,$12,(H),(F)$