Given the following task time estimates $($days$)$ Task Time Predecessor A $19--$ B $12--$ C $9--$ D $12$ A E $20$ B$,$ C F $14$ D$,$ E G $28$ D H $15$ F I $18$ G$,$ H a$.$ What is the critical path? $[$Blank$1]$ b$.$ What is the project length? $[$Blank$2]$ days c$.$ How much slack in task B$.?[$Blank$3]$ days d$.$ How much slack is in task A$.?[$Blank$4]$ days e$.$ What is the early start $/$ early finish for task F$.?[$Blank$5],[$Blank$6]$ days $$ days f$.$ What is the late start $/$ late finish for task G$.?[$Blank$7],[$Blank$8]$ g$.$ What if task A increased by $2$ days. What would be the project length and the critical path? $[$Blank$9]$