Answer:
1) 11.581
2) 10.78
3) 14.8
4) 3.5
5) 16.28
6) .64
7) 23.3
8) 1.24
9) 6.53
10) 1.59
11) 8.79
12) 27.7919
Step-by-step explanation:
Ur smarter than u think. ^_^
15%
Tell me if this helps
Please mark me as brainliest
Answer:
C
Step-by-step explanation:
10 days is twice the half-life. After 5 days, can expect

grams to remain; after another 5 days, you'd be left with

grams.