Answer:
b
Step-by-step explanation:
Answer:
-4x + 9
Step-by-step explanation:
Answer:
I can't tell u the answer but brackets always comes first.
There are not "undefined terms" but they may not have been covered in your course at this point, so what can you do ?
Parallel lines will never intersect at a point, and thus lie in the same plane perpendicular lines intersect at exactly one point and form four right angles about that point.