Answer:
23
Step-by-step explanation:
6x3=18
18+5=23
It is answer choice A because you have to take the the GCF of each number which is 2x. Then if you were to divide the numbers by 2x you would put those numbers in the brackets.

because

and

and
Answer:
a
Step-by-step explanation:
to be a function, every x has to have exactly one y, so there can't be the same number x twice wirh different y's
You will divide eveything by 6
you will end up with