Evaluate the following function for the input given below:

1. `f(6)` when `f(x) = (x^2-2+x)/(7x-7)`.

   `f(6)=`   s

2. `g(-4.6)` when `g(x) = (-2x^2+1.3x-4(8-x))/(7.5-3x)`.

   `g(-4.6)=`  

3. `g(m)` when `g(x) = 2/3x-7x^3+x(x+7)`.

   `g(m)=`  

4. `f(x+4)` when `f(x) = 2x^2+8x-12`.

   `f(x+4)=`