Answer:
Im guessing 25 +lollololl
Answer:
Please see attached picture for full solution.
Sorry, I'm not sure how to do Q7 :(
Answer:

Step-by-step explanation:
Since there are nine 2s being multiplied by each other, we can represent this as
.
Answer:

Step-by-step explanation:
If that is a square, then all sides are the same. Therefore, it's a
by
shape. We'll use Pythagorean Theorem to find the diagonal.

Since it's not a fraction, there is no denominator to rationalize. Let me know if you have any other questions!