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.
Answer:
C and D are the same answers but one of those.
Step-by-step explanation:
Um, I got what Robert got, so by process of elimination, it must be C or D. I used multiplication, so it wasn't subtraction or addition. Meaning whatever a reciprocal is, I didn't do that.
Answer:
220 [mm²].
Step-by-step explanation:
all the details are in the attachment, the answer is marked with pink colour.
Step by step explanation:
R squared= 6inchx6inch=36inchxpie
The formula is circumference x pie
Answer:
113.04 I think. I hope this helped
Answer:
70
+30x-140
Step-by-step explanation:
(7x+3) (10x-14)
70
-98+30x-42
70
+30x-42-98
70
+30x-140