Answer:
You will measure the rate of your pules and how fast its going.
You need to keep the thing you are doing for example( if your running you have to make the people run the same length as every one else.
I hope this helps :)
Explanation:
It increased slightly if you measure precisely but if you round it did not
Answer:
I have no idea what the question is.
Explanation:
But I really need points oof. please help.