Answer:
the amount of time it takes for approximately 50% of a radioactive atom sample to undergo nuclear decay
Answer:
-56
Step-by-step explanation:
You have a negative plus a positive which will give you a negative for the answer. Because you are adding a positive 28 to a negative 84 you get a negative 56.
Answer:
I don't know I'm really sorry please don't be angry
and if you want my social media cause your angry I'll give
Answer:
1/4
Step-by-step explanation:
6/9*3/8=18/72=1/4
