+118608 You are just putting up your homework and asking people to do it for you.
This is certainly not encouraged.
Since you have asked more than one question on each of your posts, and you have made numerous posts in the past few hours, your questions have been blanked out.
Make one post. Ask one question on that post.
If you have ideas of your own then say what you have tried or what you have thought about.
Wait for an answer.
Learn from the answer ... interact with the answerer ... Say thanks, give points, etc.
If you do not understand ask for clarification.
If you think it is wrong then politely say so but also say why you believe it to be wrong.
Then, try answering other similar questions on you own.
