I believe the colons should be placed as follows:
1. One thought kept crossing Jen's mind as Friday approached:
2. included the following: life, liberty, and the pursuit of happiness
3. cultures:
on the first sentence you are separating her thought from the statement
on the second, you are separating a list from the statement
on the third, you are separating the two different types of cultures from the statement.
I really hope these are correct for you :) good luck!
The correct answer would be the third one
I cant answer without the map, do you have a picture or name of the map?
<h2>At the beginning of the story, the signalman does not trust himself when he first sees the narrator</h2>