Answer: The value of k is 0.09.
Explanation:
Since we have given that

Here, k is the rate ,
t is the time,
In 2004, the whooping cranes tallied 213 birds,
So, P(t)=213
It is 19 greater than 2003,
So, P(0)=213-19=194
So, substitute all the values in given expression:

Hence, the value of k is 0.09.