Answer:
30
Step-by-step explanation:
40
x 0.75
-----------
= 30
I think the answer is half of one number to the other
The answer is C. Because it takes 5730 years for half of a sample of carbon-14 atoms to decay. It says that 50% of the carbon atoms have decayed so that means that 5730 years have elapsed for that fossil.
I hope that helps.
Answer:
2.82843
Step-by-step explanation:
it was what i got
4x-35=9x
-4x
-35=5x
divide by 5
x= -7