Question

WHOEVER ANSWERS IT'S FIRST GETS THE BRAINLIEST!!!! PLEASE HELP!!

Answer 1

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➷ Calculate the number of hours:

24 x 3 = 72

72/13 = 5.5....

This is 5 whole half lives

You have to half the value 5 times

149/2 = 74.5

74.5/2 = 37.25

37.25/2 = 18.625

18.625/2 = 9.3125

9.3125/2 = 4.65625

The closest value is B. 3.21 so that should be the answer

✽

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

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