please explain!

9)Find the absolute maximum and absolute minimum values offon the given interval.

f(x) =x/x²x+16,[0,12]

absolute minimum value: ?

absolute maximum value: ?

10) Find the derivative of the exponential function.

y=e^6x /e^6x+7

y'=?

11) IfF(x) =f(g(x)),wheref(1) =5,f'(1) =5,f'(5) =2,g(5) =1,andg'(5) =4, findF'(5).

F'(5) =?