Answer:

Step-by-step explanation:
The given equation is 
Group similar terms to get:


Square both sides to obtain:


Add 6 to both sides

Simplify the right hand side to obtain;

Answer:
4pi
Step-by-step explanation:
Circle circumference = 2*pi*r
2*pi*2
4*pi
Answer:
y = -6x - 7
Step-by-step explanation:
y = mx + b
5 = -6(-2) + b
5 = 12 + b
b = -7
y = -6x - 7
3/5 is the answer.
Explanation:
Easy way is make them into decimals, then divide.
So 3/10 = .3
And 2/4 = .5
So .3/.5 = .6
Or 6/10 = 3/5
Hope this helps! Also nice zenitsu pfp