Answer:
Non-permissible value is 
Step-by-step explanation:
we are given equation as

we know that denominator can not be zero
so, we can set denominator =0
and then we can solve for y

we can subtract both sides by 3


So,
Non-permissible value is 
4.0
is going to be your answer
Answer:
6 1/3
Step-by-step explanation:
I think it’s even because if you flip one of them they will equal up on the same line. it’s basically the inverse of the other one so it’s even
The second one is the correct equation. The constant to the right should be the diameter squared, while the numbers inside the parentheses should be the opposite.