B it is no problem I don't think it's that answer but yea
Answer:
9
Step-by-step explanation:
Solution:
Given :
.............(1)
where, B = aP = birth rate
D =
= death rate
Now initial population at t = 0, we have
= 220 ,
= 9 ,
= 15
Now equation (1) can be written as :

.................(2)
Now this equation is similar to the logistic differential equation which is ,

where M = limiting population / carrying capacity
This gives us M = a/b
Now we can find the value of a and b at t=0 and substitute for M
and 
So, 
= 
= 132
Now from equation (2), we get the constants
k = b = 
= 
The population P(t) from logistic equation is calculated by :



As per question, P(t) = 110% of M



Now taking natural logs on both the sides we get
t = 36.216
Number of months = 36.216
Answer:
17
Step-by-step explanation:
17 is our answer because you have to graph each answer choice and put it on the graphing calculator and you have to get same slope as the graph that u have.
Then I did that and I got 17 because its the same graph
hope this helps:)
Pls mark brainlist