The answer is D. You know that thing that goes Do Re Mi Fa So La Te Do? There’s a good chance you sang it in your head. It’s a scale :)
I think the correct answer from the choices listed above is option A. Effective argumentation anticipates an opponent's claim. The first component of an argument is its
claim—some conclusion or way of looking
at a problem or issue toward which an argument
is trying to lead us.
My answer would be B, because studying is the better way know more deeper about how to start working, so if you want an employ and you have a degree it's easiest than when you don't have it, now there are people that not even studied and they are rich, but this doesnt apply for all the cases.
The answer is a 1/2 gram or 0.5 grams. After 8 days, there will be 4 grams. After 16 days, there will be 2 grams. After 24 days, there will be 1 gram. And after 32 days, there will be a 1/2 gram or 0.5 grams. The formula is
(1/2)^n = fraction remaining
where n is the number of half-lives.
In this case, n=4, since 32/8=4.
The formula gives us
(1/2)^4=1/16
1/16 of 8 grams (the starting amount) is 1/2 gram or 0.5 grams