Find below a Scheme function and an attempt at the proper use of the
Design Recipe and HW skeleton.  There are 3 errors in this
solution.  I will tell you that the Definition portion is correct.

Here is your mission:

      1.  Print out this page as is.  (Do not edit it, and also, a
          handwritten copy is not acceptable.)

      2.  Use a pencil to mark out the name, gt number, instructor (as
          necessary), and lecture time (as necessary) and put your
          information there.  (If we cannot read what you write, you
          get zero credit.  Be neat!!!)

      2.  Now use a pencil to circle the 3 errors.

      3.  Next to each error, write a correction.

      4.  If you find it useful, you can use DrScheme to help with
          this assignment.

      5.  What you turn in must consist of this unedited original
          printed out on paper, having your handwritten information
          added, your handwritten circles added, and handwritten
          corrections next to each circle.  (In other words, a newly
          edited and corrected version of this file with errors fixed,
          is not acceptable.)


Note: Do not consider the following as part of the 3 "errors"
(name, gt number, instructor, lecture time), but mark out and update
those fields so they give information that is correct for you!


;; Name         : John Doe <update by pencil!>
;; GT Number    : gti999z  <update by pencil!>
;; HW           : HW3
;; Course       : cs1321
;; Instructor   : Lerner   <update by pencil!>
;; Lecture Time : 6:00 pm  <update by pencil!>
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; <1>
;; Data Analysis & Definitions:
;; <not yet required>

;; Contract: pay : number -> number

;; Purpose: 
;; calculate a simple pay based on hourly rate and hours (no overtime)

;; Examples: 
;; (pay 40 9.50) should produce 380
;; (pay 45 8.50) should produce 382.5
;; (pay 20 18.50) should produce 370

;; Template: 
;; <not yet required>
;;

;; Definition:
(define (pay hours rate)
  (* hours rate))
  
;; Tests:
(pay 40 9.50)
;; expected value
380

(pay 20 18.50)
;; expected value
307