C becuase it makes the most sense
Using the power rule, the derivatives are given as follows:
a)
.
b)
.
<h3>What is the power rule for a derivative?</h3>
Suppose we have a power function given by:

The derivative of the function is given by:

Item a:
The function is:

Then the derivative is:

When x = 2, the derivative is:

Item b:
The function is:

Then the derivative is:

When x = 3, the derivative is:

More can be learned about derivatives at brainly.com/question/2256078
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Andy's family drove 3000 meters. 1 kilometer =1000 meters
Answer:
a = 249 and b = 1.16
Step-by-step explanation:
Consider the provided information.
The exponential function for growth is: 
Here, a is the initial value and r is the rate of change.
It is given that the number of birds is 249.
It means a = 249
The rate is given 16%
r=0.16
Put the value of a and r in the above formula.


Now we will compare it with the exponential function form 
Therefore, a = 249 and b = 1.16