What is happening to Stella at the end of Scene 8?

Title

What does Blanche’s knowledge of French and Mitch’s lack of knowledge tell you about their backgrounds?

It is related to their social status. Immigration was important in this region, and people from French ascendence.

Why does Mitch ask Blanche her age?

Because he really loves her and is willing to go further than just an affair.

What does the searchlight represent?

It represents love. After her husband died she was hopeless, lost and didn't know what to do.

What does the locomotive represent?

It represents her "past", roaring past her and tormenting her.

What did Blanche do in Laurel that got her into so much trouble?

Because she got mixed up with a 17 year old student, at her own school.