Since, population of species A is represented by : 
Let us find the population of species A, at the end of week 1:
i.e., x = 1
i.e., 
i.e., 
i.e., 
Also, since population of species B is represented by : 
Let us find the population of species B, at the end of week 1:
i.e., x = 1
i.e., 
i.e., 
i.e., 
Thus, at the end of 1 week, species A and species B will have the same population.
Hence, option D is correct.
Answer:
$6
Step-by-step explanation:

Answer:
n=36
Step-by-step explanation:
I dont know if thats how it was set up but here you go. I hope this helps. (I can change it if thats not how its set up)
I’m not 100% but my best guess is 20.
Answer:
8
Step-by-step explanation: