minus

E

$4$

B

B

$7$

minus

F

$5$

B

C

$2$

A

G

$10$

$$C$,$ E

D

$1$

A

H

$8$

D$,$ F

Part $2$

$$Dave$\text{'}$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

$$

$0$

$6$

B

$0$

$$

$7$

C

$$

$6$

$8$

D

$6$

$$

$7$

E

$$

$7$

$11$

F

$7$

$$

$12$

G

$$

$11$

$21$

H

$$

$12$

$20$

Part $10$

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