Answer:
I don't know the answer I need points before I fail my math test
Answer:

Explanation:
As in any sample you will have 75.8% of Cl-35 iosotopes and 24.3% of Cl-37 iosotopes you can get the average atomic mass as:

-- The object either left or crossed the starting line exactly at time=0 .
-- The object has been traveling at constant speed for all time that
we know about.
C. Amount of oxygen
The others either change but don’t decrease or they increase.