Answer:
look at the picture i have sent
The answer is 1.35 maybe the correct answer
Answer:
576
Step-by-step explanation:
Answer:
8.898% will remain after 20000 years.
Step-by-step explanation:
First week need to know the half-life of carbon-14.
In this case it's 5,730 years.
There are calculators available online. (I'm too lazy to run through the equation.) 8.898% will remain after 20000 years.
217.5/87=2.5. I put it into a calculator and this is what I got.