Evaluate the following function for the input given below:

  1. `f(8)` when `f(x) = (x^2-4+x)/(9x-5)`.

    `f(8)=`   s

  2. `g(-5.3)` when `g(x) = (-4x^2+1.7x-4(8-x))/(7.5-2x)`.

    `g(-5.3)=`  

  3. `g(m)` when `g(x) = 2/3x-5x^3+x(x+5)`.

    `g(m)=`  

  4. `f(x+3)` when `f(x) = 5x^2+6x-13`.

    `f(x+3)=`