Exercise: Do Examples Have the Same Contracts?

Directions: For each pairs of Examples below, decide whether the two examples have the same contract. If they do, fill in the contract in the space provided. If not, write a few words explaining why.

; : -> (EXAMPLE (mystery 30) (* 30 50)) (EXAMPLE (mystery 10) (text "Welcome!" 10 "darkgreen"))
; : -> (EXAMPLE (mystery 30 40) (- 40 (* 2 30))) (EXAMPLE (mystery 10 15) (- 15 (* 2 10)))
; : -> (EXAMPLE (mystery "New York") (text "New York" 20 "red")) (EXAMPLE (mystery 20) (text "New York" 20 "red"))
; : -> (EXAMPLE (mystery "green" 32) (circle 32 "outline" "green")) (EXAMPLE (mystery 18 "green") (circle 18 "outline" "green"))
; : -> (EXAMPLE (mystery 6 9 10) (/ 6 (+ 9 10))) (EXAMPLE (mystery 3 7) (/ 3 (+ 7 10)))
; : -> (EXAMPLE (mystery "red" "blue") (text "blue" 25 "red")) (EXAMPLE (mystery "purple" "Go Team!") (text "Go Team!" 25 "purple"))
; : -> (EXAMPLE (mystery (circle 55 "outline" "black") 12) (scale 12 (circle 55 "outline" "black"))) (EXAMPLE (mystery (rectangle 24 32 "outline" "purple") 5) (scale 5 (rectangle 24 32 "outline" "purple")))
; : -> (EXAMPLE (mystery "Free Phone" 25 "darkgreen") (text "Free Phone" 25 "darkgreen")) (EXAMPLE (mystery 25 "Free Phone") (text "Free Phone" 25 "darkgreen"))

Bootstrap by Emmanuel Schanzer is licensed under a Creative Commons 3.0 Unported License. Based on a work at www.BootstrapWorld.org. Permissions beyond the scope of this license may be available at schanzer@BootstrapWorld.org.

)