Answer:
C). 0.39 grams
Step-by-step explanation:
First find how many half-lifes are in 3 hours:
3 hours ÷ 20 minutes = 9 half-lifes
Find the total left:
0.5^9*200 ≈ 0.39
Answer:
It is (2,4) Plz mark brainliest
Step-by-step explanation:
When you buy a coffee table or piece of circular furniture
