Based on the below table of project activities, determine the activities on the critical path and the estimated slack for each activity.

Activity Time $($Days$)$ Precedence Relationship Cost $($$$)$

A $2$ None $($start$)100$

B $30$ A $2100$

C $10$ A $800$

D $7$ A $1750$

E $1$ None $($start$)200$

F $1$ E $300$

G $4$ F $1000$

H $6$ F $1500$

I $1$ F $200$

J $3$ I $900$

K $5$ I $1000$

L $1$ I, D $200$

M $3$ E $210$

N $1$ K$,$ L $200$

O $1$ H$,$J $240$

P $4$ N$,$ O $2000$

Q $1$ C $100$

R $1$ G$,$ P $100$

S $4$ R$,$ Q $1700$

T $7$ B$,$ S $2400$

U $1$ M$,$ S $100$

V $2$ T$,$ U $1000$