Answer:
The answer to your question is below
Step-by-step explanation:
Part A.
-3x + 7y = 13
Solve the equation for "y"
7y = 3x + 13
y = 
Part B.
Two lines are parallel if their slopes are the same
Two lines are perpendicular if their slope are opposite reciprocals
Slope of the first line = 
Slope of the second line = 
Conclusion: the lines are parallel because their slopes are the same.
Let's set it up like this:

Find the LCD, which is 12, and adjust them according to that.

Divide.

Cancel the common factor, which is 12.

That would be our answer!
Let me know if you have any questions regarding this problem!
Thanks!
-TetraFish
Its kinda blurry and I can't read the whole question
Answer:
Removing the perfect square 4 in 12 we get 2√3
Step-by-step explanation:
The square root of 12 is
√12 = √(4 x 3)
√12 = 2√3.
There's no special trick here, but it's usually easy to check whether a small number is divisible by 4. Keep this in mind when looking for factors.
Removing the perfect square 4 in the square root of 12 we get 2√3.
Here 4 is a perfect square it can be written as
√4 =√2^2
√4 =2
6 x9= 54 and 6x11=66 so those two together equal 120 but 4x9=36 adding those would equal 156 which is the answer