//Functions questions
/*
  1)  draws a pixel face at input values x, y
        void pixelFace(int x, int y){  ......    }
        
  2)  calculates the tax on an item and returns the value
        float calcFace (float itemPrice){ .......... return ..... }
        
   3)  Calculates the average of a fixed size array.  int or float or whatever
   
   4) calulates the average from an arraylist.  int or float

5) Write a function:

INPUT: Array of integers (fixed size), size unknown but is multiple of 5
OUTPUT: ArrayList of integers

sum every 5 numbers
store each sum in and arraylist
return it