Answer:
C
Step-by-step explanation:
A has nothing to do with the paper inside and B and D don't matter bc its the first student
Answer: Scaline?
Step-by-step explanation:
Answer:
a. 3x^2 = 81
x^2 = 27

Step-by-step explanation:
Answer:

Given:

Step-by-step explanation:

Identity used:

The answer is the square root of 4.
2 * 2 = 4
2 is a rational number; therefore, the square root of 4 is a rational number.