a$)$ Four Squares should start preparing for the release of the movie

$$

enter your response here weeks in advance of the$$ film's release as this is the length of the project. $($Round your response to two decimal$$ places.$)$

Part $3$

The activities that represent the$$ project's critical path are

$$

E $-$ L $-$ N $-$ P

C $-$ H $-$ M $-$ O

B $-$ G $-$ M $-$ O

C $-$ J $-$ N $-$ P

D $-$ K $-$ N $-$ P

C $-$ I $-$ O

A $-$ F $-$ M $-$ O

$.$

Part $4$

$$c$)$ If it is determined that activities Upper K and Upper L are not$$ necessary, this finding will result in

$$

change

no change

to the length of the project.