Determine the amount of slack in each of a project's activities (presented below), and identify those that are on the The duration of each activity is: A ( 4 min ) , E ( 9 min ) , C ( 6 min ) , D ( 2 min ) , F ( 5 min ) and G ( 3 min ) Determine the ES, EF, LS and LF for all activities. Calculate the slack as well