Answer:
Step-by-step explanation:
Note that the half life is 22 years, and that 50% of the original amount is left after that number of years. 88 years is 4 times the half life, and so the amount left after 4(22), or 88, years is 6.25%. Note that the Pb-210 continues to decay.
Answer:
b = -3
Step-by-step explanation:
just divide 27 by -9 dude
The degree is 4 because it is the largest exponent out of all the variables.
Answer:
0,0215
Step-by-step explanation: