$1-$ Given the following network:

a$)$ Find$$ the earliest time the project will be completed.

b$)$ Find the critical path..

c$)$ If activity I is delayed by $5$ days, find the completion time of the entire project.

$$

$$ Activity t$$ G

$$ A$13$

$$ B$9$A

$$ C$14$E$$H$$

$$ D$6$C

$$ E$6$D

$$ F$11$

$$ G$10$B$$F$$I$$

$$ H$9$

$$ I$10$