1) y= 1/2x+2 and I have no idea about 2
For this case we have to evaluate the following expression,

We must follow the steps below:
We convert the mixed number into a fraction:

We multiply the fractions, taking into account that:

We simplify:

We convert to mixed number:

Answer:

Remember these two combinations: logab=loga+logb, log(a/b)=loga-logb
3logx=logx^3
(1/2)log(x+2)=log(x+2)^(1/2)
2log(z-4)=log(z-4)^2
so the given expression can be combined into log{[(x^3)(z-4)^2]/(x+2)^(1/2)}
Answer: x-1/6
Step-by-step explanation:
That is true. it is part of natural numbers.