Answer: The slope of the line would be 1.25!
Step-by-step explanation: I'll provide a screenshot of the graph I have made in a second! (:
The third equation is the correct one. After 100 years, about 115 grams will remain.
Answer:

Step-by-step explanation:




Answer:
221 minutes
Step-by-step explanation:
52 divided by 20 would be 2.6 then you take the 85 and mulitpy it by 2.6 because 52 is 2.6 times more than 20. so 85 times 2.6 would be 221 minutes.