Answer:
B) 
Step-by-step explanation:
The formula for the area of a circle is : 
The radius of a circle is the length from one side to the centre.
To work this out you would have to multiply pi by the radius of 7 squared, this gives you 153.94, however if using pi as in 3.14, then the answer is 153.86.
1) Multiply pi by 7 squared.

Answer: 8
Step-by-step explanation:
12-4= 8
*8 is the length of the side because of this theory I forgot, but yeah!
The answer is 115....................................................
Answer: You draw the shape on the coordinate plan and then you can count the number of unit squares
Step-by-step explanation:
Answer:
Undefined
Explanation:
The slope is undefined because when you apply the slope formula to find the slope of m it turns out undefined.