Answer:
Solving the inequality we get: 
Step-by-step explanation:
We need to solve and graph the inequality 
Solving:

Step 1: Multiply 3 with terms inside the bracket

Step 2:Subtracting 51 on both sides

Step 3: Subtract 14x on both sides

Step 4: Divide both sides by 7

Solving the inequality we get: 
The graph is attached in the figure below.
Give The Rest of the question
Answer:
It means or stands for the probably that either A or B occurs or both.
Step-by-step explanation:
It really isn't steps to it you just have to learn it.
(1,-1)
(-4,2)
(-2,1)
I believe these will work
The second result is more precise because it's in millilitre,so if the first were to be fully precise,it should have been 78.6 cm.
Hope this helps!