# [racket] Order of Operations - Getting the brackets.

 From: Sayth Renshaw (flebber.crue at gmail.com) Date: Wed Dec 22 05:44:25 EST 2010 Previous message: [racket] Basic Racket Question Next message: [racket] Solved Re: Order of Operations - Getting the brackets. Messages sorted by: [date] [thread] [subject] [author]

```What I am having trouble navigating is the brackets.

Simply in normal math what I am trying to do is

(people * ticket price)-((number of shows * 20)+(people * cost per person))

Contrcat : total profit : attendees performance -> number

;; Purpose to calculate total profit of a theatre per show

;;Example: (total profit 20 1) should produce \$70

;;Defintion: ( define (- profit cost))
(* patrons 5( - (* patrons 0.5(+ (* shows 20)))))

(define (patrons p)
;p     a number
...
)

(define (shows s)
;s        a number
...
)

(define (total_profit p s)
(* p 5( - (* p 0.5(+ s 20)))))
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```

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