Answer:
Đọc sách và ghi chép cẩn thận, bao gồm những chi tiết quan trọng mà bạn cần nhất
Hy vọng rằng sẽ giúp! :}
Read your books by your self and take notes carefully, including the details that are most important.
Hope that helps! :}
Note that with |x|, the value x will always be positive when simplified. This means that:
B) |-3.5|, |4.2|, |-9| is your answer, because it becomes, 3.5, 4.2, 9
hope this helps
