Yes they are , since they are very common in ones body
7.158 * 10^9 rounds to 7 * 10^9
7 * 10^9 = 7,000,000,000
Answer:
-3x + 3
OR
-3(x-1)
if you want it factored
Step-by-step explanation:
transition up is just adding the desired amount to the equation so
f(x) transitioned up 1 = -3x+3
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.