Jse the project activities that follow to determine the followin

$\backslash$table$[[$Activity$,$Activity Predecessor,Time $($Weeks$)],[1,-,4],[2,-,7],[3,1,8],[4,1,3],[5,2,9],[6,3,5],[7,3,2],[8,4,5,6,6],[9,2,5]]$

Construct a Gantt chart; indicate the project completion time and slack for each acti $($Do not leave any answer field blank. Enter $0$ for values.$)$

Project completion time weeks

Activity Slack $($weeks$)$

$1$

$2$

$3$

$4$

$5$

$6$

$7$