Answer:
D is correct option.
Step-by-step explanation:
We are given a function 
We need to find new function reflection of f(x) across the y-axis.
When function reflection across y-axis 

Therefore, 
New function, 

Thus, D is correct option.
Answer:
The first one B(1and 2). The second is D( 5/2)
Step-by-step explanation:
I think the first one is between 1 and 2 because if you divide 5 and 2 it will be 2 remainder 1. Then the second one is D i.e 5/2. Hope it was helpful?
19 is a prime number, so the prime factorization is 1*19
Answer:
It is
Step-by-step explanation:
The answer you get is 1522.33