Answer:
Step-by-step explanation:

D) 2.1+2x=7.5
All the sides added together will equal the perimeter
The possible values for | x-y | > 0 is any number above 0. x must be greater than y. When | x-y | = 0, That means that x and y are equal to each other. | x-y | can not be less than 0, but it can equal 0.
Hope that this helped!
6/7 because it’s a smaller fraction with more pieces. Brainliest???
Answer:
3 sqrt 5
Step-by-step explanation:
diameter talks about the center of the circle..and the middle of the circle lies between 3 and 5