Evaluate the following function for the input given below:

1. `f(7)` when `f(x) = (x^2-2+x)/(8x-4)`.

   `f(7)=`   s

2. `g(-5.1)` when `g(x) = (-5x^2+1.2x-4(6-x))/(8.2-2x)`.

   `g(-5.1)=`  

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

   `g(m)=`  

4. `f(x+4)` when `f(x) = 2x^2+7x-12`.

   `f(x+4)=`