Answer:
A
Step-by-step explanation:
A is false because irrational numbers can not be integers.
x=-21
x-7=2x+14
-7=x+14
-21=x
3. the answer is A3
you do 3x-1 and you get 3
W=5
40+4w=12w
-4w -4w
40= 8w
÷8 ÷8
5=w
UNLOCK
A normal number
The sides from least to greatest are AB, BC, AC