$2\mathrm{.}2$ Given the following table:

$\backslash$table$[[$Activity$,$Precedents,$\backslash$table$[[$Duration$],[($days$)]],$Activity,Precedents,$\backslash$table$[[$Duration$],[($days$)]]],[A,-,5,E,B,D,4],[B,A,4,F,A,C,8],[C,-,5,G,E,F,16],[D,A,C,7,,,]]$

Respond to parts $($a$)-($c$)$ from exercise $2\mathrm{.}1.$

$2\mathrm{.}9$ Consider exercise $2\mathrm{.}2$; show the Gantt chart and the line of balance where the actual project completion activity $A$ is delayed by five days.