Stella is remarkably sad at the end of the play because of what happens to Blanch. Was she right in doing what she has done?

At the end of the book Stella sends Blanche to a mental institution. This is why she was sad. Nobody wants to send their brother or sister to an institution, but she felt it was best for everyone. Blanche was a drunk who constantly lied to those around her.

In the beginning Blanche seemed somewhat together. But as the play continued, she slowly became crazy. She couldn't contain and control all of the emotions she had bottled up inside. She didn't know how to deal with all the deaths in her family including the death of her first husband. At one point she destroyed a mirror amidst talking to herself.  

For Stella and Stanley to put Blanche away at an institute was the best thing to do. When she entered the household tension ensued. Right from the git-go, Blanche stirred up anger in Stanley because of her  lies and deceitfulness. Sending Blanche away was the only way Stella and Stanley could have a somewhat peaceful life, and the only way Blanche could get better. 

What is revealed about Blanche in these chapters? Do these revelations come as a shock?

In scenes 6-8 the truth of Blanche's past is revealed. We find out that she did stay at the Flamingo, which we all could have guess was true. What we didn't know before was that she was kicked out for sleeping with multiple men. She dated so many men that eventually she was kicked out of the town as well. We also find out what happened with Blanche and her first husband. When she was young she married a boy, about the same age as her. After they married, Blanche saw him with an older woman. Later when they were dancing she whispered in his ear that he disgusts her. Soon after he ran outside, put a revolver in his mouth and fired. Stanley goes on to tell us something that we all probably knew. Blanche was kicked out of town and fired from school because she had relations with a 17 year old student of hers. 

Why does Blanche disapprove of Stanley

As Blanche puts it, "he's common." I'm not quite sure what she means by that but common means ordinary, like everything else. And as we know, Blanche only likes 'exquisite' men- men who are better than the commoners. She relates him to a an ape, saying he's bestial. Blanche then goes rants on about this hypothetical situation where he actually is an ape. And Stanley's poker nights; those are the gatherings of him and his kind. She disapproves of him because he's not anything like her kind. He's only common-folk, not high class like she is and how she believes Stella should be. She really shows her hatred for Stanley when she says that he's the kind of guy someone goes out with a few times only when the devil's in you.

A Streetcar Named Dessire: Scenes 2 & 3

We get the sense in scene 1 that Stanley likes to control things. He doesn't really care how people react to what he says. He 'puts all the cards on the table' as Stanley puts it. We also get the sense that he is a bit violent when he yells at Blanche to get her to tell him what really happened to the estate. In scene 3, Stanley in a drunken haze chases after Stella with bad intentions. He hits her and she screams. We learn two things about Stanley here. He is more violent than we expected, and he isn't a fun drunk. We also learn through this quarrel that Stella isn't happy. This is different from what we knew about her from scene 1. She said she would cry when he was away and lay on him when he'd return. She wants to go away. 

Were Willy’s final actions noble, or were they a sign of weakness

Willy's last actions shouldn't be considered anything close to noble. We found out early on in the book that Biff has always had trouble opening up to Willy. Here, in Willy's last moments of life, Biff opens up to Willy in tears. He tells him the real reason why he had no address for three months and how he has failed him. Even though Willy was reluctant to listen to the facts, as he always is, he and Biff finally connected. Biff threw himself out there exposing his lies, and what did Willy go and do? He killed himself- not very noble. He and Biff could have lived in harmony. He couldn't do that though. Willy was a coward.

What happens to Biff and Willy’s relationship after Biff goes to the hotel?

Willy has built himself up to be the ideal father for Biff. He was his idol. Biff looked up to Willy doing everything he said. To Biff, Willy was almost a god among men. He could sway anyone with his friendliness and unique charisma. When Biff walks into his hotel room and finds Willy's mistress in the bathroom, his view of his father changed. Everything he once thought of his father- his greatness- went down the gutter. Everything that Willy built himself up to be was destroyed in a matter of seconds. Biff and Willy's relationship changed permanently that day. This was the reason for the present events- the reason why Biff is the way he is and why Willy is the way he is. It was all because Biff saw Willy for who he really was that day, a liar. From then on, Biff never saw his father as any idol of his.

Do you think Willy made the right decision to refuse Charlie’s help

Willy made a very immature decision refusing Charlie's help. Charlie offered Willy a steady job with an income, without knowing that Willy was just fired. That should have been an incentive for Willy to accept his offer, and yet he still refused. Willy has to much pride to work for Charlie because he has been jealous of him for years. He wishes his children could have turned out like Charlie's son Bernard. Willy still needs to grow up, just as Charlie said. Willy already has to borrow money from Charlie just to get by, so it was a very bad decision to refuse a job that could provide him with enough money to support his family. He will have to get over his pride issues.

Ben's influence upon WIlly

Ben appears to be Willy's idol. He looks up to him for business advice. Ben told Willy that if he wanted to make some money he and his boys should move up to Alaska. Willy got really excited about the idea. Willy seems to become really enticed about anything Ben talks about. And, for the most part, I think he's a good influence on him. Things would have been pretty different if he had moved to Alaska, but it could have been for the better. Ben encourages Willy to follow his dreams, which is becoming successful. Linda doesn't think he's a good influence on Willy, because she thinks Willy is fine where he is. She thinks they have a good life in their town. At one point, the book says that Linda is frightened of Ben. It's possible that either Linda just really doesn't like Ben, or she's afraid of change.

Biff and Happy's plan

Biff and Happy think up a plan that will prove to their father, Willy, that they can make it in the business world. They plan to start a business that sells sports equipment and to create two water polo teams with the loan from their friend Oliver. Their idea has potential but there will be some difficulties with it. For one, Biff and happy are having family troubles dealing with Willy who seems to be going crazy. Procrastination will also slow them down. While thy were arguing with each other earlier and also before that, they seemed to do a whole lot of talking without any action. Biff said he could make it in the business world but so far all he's done is live on a farm. So, it's likely this plan is just more of their talk. Another obstacle they would face is each other. Biff and Happy argue a lot. Partnering up to start a business would require a lot of cooperation which they may have some trouble with. If they could overcome those obstacles, their plan could work.