Dave's earliest start$($ES$)$ and earliest finish$($EF$)$ are:

Part $3$Part $4$Part $5$Part $6$Part $7$Part $8$Part $9$

Activity

ES

EF

A

$$

$0$

$5$

B

$0$

$$

$7$

C

$$

$5$

$9$

D

$5$

$$

$7$

E

$$

$7$

$12$

F

$7$

$$

$14$

G

$$

$12$

$23$

H

$$

$14$

$22$

Part $10$

$$Dave$\text{'}$s latest start$($LS$)$ and latest finish$($LF$)$ are:

Activity

LS

LF

H