Answer:
I believe the answer is A
This is posted in the health section by the way;
The answer:

So -5/53 Assuming you are substituting in 8 for x.
Answer:
D
Explanation:
All cells have there own role to keep an organism alive
A fibrous joint that is a peg-in-socket is called a Gomphosis
Answer:
a. physical activity
Explanation:
Physical activity actually helps your body and your hearth to be more healthy by providing and putting your hearth to work, when you exercise your hearth starts to pump blood to your muscles, this effort will eventually make your hearth stronger and will help you have a better and healthier life.