Please note:
1) Ask only one question per post.
2) When asking a question talk about what you have tried for yourself. Then people will take you more seriously and will be more able and willing to help.
3) If you get an answer please respond to it.
4) If you do not understand it ask for further explanation. Be specific if you can.
5) If you think it is wrong say so but give your reason for thinking this.
6) If you understand then say so with a written thank you and also give a thumbs up.
If you are a polite and serious learner then it is in your interest to become a member.
There are a number of benefits but the biggest is that you will become known and appreciated.
Your questions will be answered much better and faster.