Answer: x^5y^2
Step-by-step explanation:
Answer:

Step-by-step explanation:
The fish population after t years can be modeled by the following equation:

In which F(0) is the initial population and r is the constant rate of decay.
Year one the fish population was 18000
This means that 
In year three the fish population was 8000 fish.
Two years later, so 






So

20 cm * 1 inch / 2.54 cm =
<span>
<span>
<span>
7.874015748
</span>
</span>
</span>
inches
So the approximate result is 20 cm = 7.9 inches