2/6. because there are 6 part of the square and there are 2 that are shaped red.
Use Pythagorean's Theorem to find the length of x.

so

and

. We can simplify that radicand down into a perfect square times a prime number, and that is

. 4 is a perfect square that can be pulled out as a 2, so the length of x is

, the choice on the top right.
D, the number inside of the absolute lines are just the exact same number in there but just positive. If the number was positive the number would still be the number:
|100| = 100
|-100| = 100
Answer:
It should be 
Step-by-step explanation:
Answer:
18.6
Step-by-step explanation:
Adding -20.4 to 39 is the same as subtracting 20.4 from 39. 39 - 20.4 = 18.6.