Questions $12\mathrm{.}15$ thru $12\mathrm{.}17$ reference the following tables $($questions follow$)$:

Activity

Duration

Predecessors

Activity

Duration

ES

EF

LS

LF

Slack

A

$3$

A

$3$

O

$3$

O

$3$

B

$5$

A

$5$

$3$

$8$

$5$

$10$

$2$

A

$3$

$103$

$10$

$3$

B$,$ C

$3$

$10$

$13$

$10$

$13$

G

$5$

$4$

$2$

B

$8$

$13$

$12$

$17$

D

C

$13$

$17$

$13$

$17$

G

$2$

$10$

$12$

$15$

$17$

$5$

E$,$ F$.$ G

$17$

$22$

$17$

$22$

Activity

Duration

Total Float

Resource Hours Needed per Week

Total Resources Required

A

$3$ weeks

$6$

$18$

B

$5$ weeks

$20$

C

$7$ weeks

$28$

D

$3$ weeks

E

$5$ weeks

F

$4$ weeks

G

$2$ weeks

$5$

$6$

$2$

$3$

$18$

$10$

$16$

$6$

H

$5$ weeks

$6$

Total

$30$

$446$