Evaluate the following function for the input given below:
`f(6)` when `f (x) = (x^2-5+x)/(6x-3)`.
`f(6)=` s
`g(-5.5)` when `g (x) = (-2x^2+2x-3(7-x))/(7-3x)`.
`g(-5.5)=`
`g(m)` when `g (x) = 2/3x-6x^3+x (x+5)`.
`g(m)=`
`f(x+3)` when `f (x) = 2x^2+6x-13`.
`f(x+3)=`