Answer:
Step-by-step explanation:

This is the simplest form as 17 is a prime number.

19 is a prime number. so it is the simplest form.

A is not commutative with the above expression
your answer is A
1. false because the GCF of 101 and 102 is 1 whereas the GCF of 33 and 99 is 33.
2. idk
3. false because the GCF of 1 and 2 is 1
2x-5=x+2
x=7
The answer is 7