Answer:
False
Explanation:
I think it depends on the type of person your talking to. So it can be said to people other than friends or relatives.
This is my opinion :)
Answer:
interesting. Both AB are fine, but the second pinyin of the latter (chuang shang) should be marked with a soft sound, whereas if it is 'xia' there is no need for a soft sound. I don't know if this makes sense to you. if you also have questions, you can send a message to me.
Explanation:
Answer 1: X= (c-a+2b) divided by a
Answer2: X=a(ca-2b)
