Answer:
12 ≤ a < 18 B is the letter
Step-by-step explanation:
i took the test
If you expand the square, you have

Simplify the right hand side:

Cancel the -3x appearing on both sides:

Multiply both sides by 4:

Consider the square root of both terms (using the doubles sign):

Answer:
1. answer is the first one "See you!"
2. answer to the second one is "como se dice"
3. answer for the third one is "canyon"