Answer:
Della becomes suddenly nervous about what Jim will think about her hair and how she will tell him how she sold it. She is unsure whether Jim will become cross with her.
I hope this is helpful :] Good luck ^^
It depends what you are writing,some can be factual/informal,others persuasive ect
Depending on what grade you are, maybe. If you are in sixth grade or lower, yes. In seventh and higher, no. A question as a hook is taught in elementary school but should not be used in higher grade essays.
You can color code your notes :) make up a color system