1 12687dd9 2023-08-04 jrmu ;; The first three lines of this file were inserted by DrScheme. They record metadata
 2 12687dd9 2023-08-04 jrmu ;; about the language level of this file in a form that our tools can easily process.
 3 12687dd9 2023-08-04 jrmu #reader(lib "htdp-beginner-reader.ss" "lang")((modname 4.4.3) (read-case-sensitive #t) (teachpacks ((lib "convert.ss" "teachpack" "htdp"))) (htdp-settings #8(#t constructor repeating-decimal #f #t none #f ((lib "convert.ss" "teachpack" "htdp")))))
 4 12687dd9 2023-08-04 jrmu (define BRACKET2 240)
 5 12687dd9 2023-08-04 jrmu (define BRACKET3 480)
 6 12687dd9 2023-08-04 jrmu (define BRACKETRATE1 0.00)
 7 12687dd9 2023-08-04 jrmu (define BRACKETRATE2 0.15)
 8 12687dd9 2023-08-04 jrmu (define BRACKETRATE3 0.28)
 9 12687dd9 2023-08-04 jrmu 
10 12687dd9 2023-08-04 jrmu ;; tax-rate : number -> number
11 12687dd9 2023-08-04 jrmu ;; Given amount, it computes the tax rate
12 12687dd9 2023-08-04 jrmu ;; Divides the amount into brackets by using BRACKET2 and BRACKET3
13 12687dd9 2023-08-04 jrmu ;; Gives the tax rate based on where the value falls between the two brackets
14 12687dd9 2023-08-04 jrmu ;; BRACKETRATE1, BRACKETRATE2, BRACKETRATE3 (bracket rate - the tax rate for
15 12687dd9 2023-08-04 jrmu ;; a given bracket)
16 12687dd9 2023-08-04 jrmu 
17 12687dd9 2023-08-04 jrmu (define (tax-rate amount)
18 12687dd9 2023-08-04 jrmu   (cond 
19 12687dd9 2023-08-04 jrmu     [(<= amount BRACKET2) BRACKETRATE1]
20 12687dd9 2023-08-04 jrmu     [(<= amount BRACKET3) BRACKETRATE2]
21 12687dd9 2023-08-04 jrmu     [(> amount BRACKET3) BRACKETRATE3]))
22 12687dd9 2023-08-04 jrmu 
23 12687dd9 2023-08-04 jrmu ;; tax : number -> number
24 12687dd9 2023-08-04 jrmu ;; Given the amount, calculates the total tax by multiplying the amount
25 12687dd9 2023-08-04 jrmu ;; by the tax-rate
26 12687dd9 2023-08-04 jrmu 
27 12687dd9 2023-08-04 jrmu (define (tax amount)
28 12687dd9 2023-08-04 jrmu   (* amount (tax-rate amount)))