Answer:
BẠN BỊ ĐIÊN À
Step-by-step explanation:
CÚT
So for number 2 i am 100% on which the area of the triangle is 6.
and then 1 i think not 100% sure is an acute angle again not 100%
then 3. it don't make sense to me so idk about that 1 srry.
~Good Luck~
Answer:
The First one is the answer
Answer:

Step-by-step explanation:

Bring constants to one side, simplify:

*Note that the inequality sign only changes when you divide the whole inequality by a negative number.