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
Answer:
The fill in the blank section:
3/4 and 4/4
The section beneath:
1) Add one more note to the first measure and second measure
2) Add two more notes to the first and second measure.
Sorry if this is wrong, I haven't been in choir for a little while and I may not remember things correctly.
