Compute the post fix equivalent of the following expression. 3 * log(x+1) - a/2

What value would the following function return for the input x = 95?

 function fun (x:integer):integer; 
   Begin 
      If x > 100 then fun : x – 10 
      Else fun : fun(fun (x + 11)) 
   End; 

Which of the following statements is false?

A complete n-ary tree is one in which every node has O or n sons. If x is the number of internal nodes of a complete n-ary tree, the number of leaves in it is given by