Lodine-131 has a half-life of approximately 8 days. Find the amount of
iodine-131 left from a 100-gram sample after 16 days.
25g
0.39g
32.75g
0.0015g

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

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the answer for this question is a= 13,622.84

step-by-step explanation:

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.

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step-by-step explanation: