I'll go slow:
![2\sqrt 7 - \sqrt{28}](https://tex.z-dn.net/?f=2%5Csqrt%207%20-%20%5Csqrt%7B28%7D)
![=2 \sqrt 7 - \sqrt{4 \cdot 7}](https://tex.z-dn.net/?f=%3D2%20%5Csqrt%207%20-%20%5Csqrt%7B4%20%5Ccdot%207%7D)
![=2 \sqrt 7 - \sqrt{4} \cdot \sqrt{7}](https://tex.z-dn.net/?f=%3D2%20%5Csqrt%207%20-%20%5Csqrt%7B4%7D%20%5Ccdot%20%5Csqrt%7B7%7D)
![=2 \sqrt7 - 2 \sqrt 7](https://tex.z-dn.net/?f=%3D2%20%5Csqrt7%20-%202%20%5Csqrt%207)
![=0](https://tex.z-dn.net/?f=%3D0)
Answer: B rational and equal to 0.
Answer:
C- Divide both sides by 3.
Step-by-step explanation:
In order to isolate the variable, we will have to remove all non-1 coefficients from the variable. Since 3b can be written as 3(b), b is being multiplied by 3. So the only way to isolate the variable is to do inverse operations, which would be to divide both sides of the inequality by 3.
Hope this helped!
Answer:
False, Europe is the answer.
Step-by-step explanation:
Answer:
it is a.
Step-by-step explanation: