Answer:
11.5
Step-by-step explanation:
-1*-11.5=11.5
Answer:

Step-by-step explanation:
Given
--- Initial Amount
every 10 years
Required
The remaining amount after 300 years
To do this, we make use of:

Where
r = decay rate
T = the period of decay
In 300 years, there are 30 periods of 10 years.
i.e.






Answer: 15 i think
Step-by-step explanation: not sure