After consulting with Butch Radner, George Monohan was able to determine the activity times for constructing the weed$-$harvesting machine to be used on narrow rivers. George would like to determine ES$,$ EF$,$ LS$,$ LF$,$ and slack for each activity. The total project completion time and the critical path should also be determined. $($See problems $12-16$ for details.$)$