Language used is Beginner Student Language on DrRacket

(@problem 1) ;; The following function design may have errors in it. ;; or errors that you find. Any changes you make should preserve the existing ;; design intent. Please fix the error ;; First uncomment the entire function design, and then fix the error. ;; If you are unable to find and fix the error, leave it commented out. ;; ;; Your solution must include @htdf, @signature, and @template tags. ; (@htdf stack) ;(@signature Image Image -> Image) ;;; stack images, widest on bottom, first on bottom if same width ;(check-expect (stack (rectangle 10 5 "solid" "blue") (rectangle 20 9 "solid" "red")) (above (rectangle 10 5 "solid" "blue") (rectangle 20 9 "solid" "red"))) ;(check-expect (stack (rectangle 20 5 "solid" "blue") (rectangle 20 9 "solid" "red")) (above (rectangle 20 9 "solid" "red") (rectangle 20 5 "solid" "blue"))) ;(check-expect (stack (rectangle 20 5 "solid" "blue") (rectang le 10 9 "solid" "red")) (above (rectang le 10 9 "solid" "red") (rectangle 20 5 "solid" "red"))) ;;(define (stack il i2) i1) ;stub ;(@template Image) ; (define (stack il i2) (if (> image-width il image-width i2) (above i2 i1) (above il i2))) (@problem 1) ;; The following function design may have errors in it. ;; or errors that you find. Any changes you make should preserve the existing ;; design intent. Please fix the error ;; First uncomment the entire function design, and then fix the error. ;; If you are unable to find and fix the error, leave it commented out. ;; ;; Your solution must include @htdf, @signature, and @template tags. ; (@htdf stack) ;(@signature Image Image -> Image) ;;; stack images, widest on bottom, first on bottom if same width ;(check-expect (stack (rectangle 10 5 "solid" "blue") (rectangle 20 9 "solid" "red")) (above (rectangle 10 5 "solid" "blue") (rectangle 20 9 "solid" "red"))) ;(check-expect (stack (rectangle 20 5 "solid" "blue") (rectangle 20 9 "solid" "red")) (above (rectangle 20 9 "solid" "red") (rectangle 20 5 "solid" "blue"))) ;(check-expect (stack (rectangle 20 5 "solid" "blue") (rectang le 10 9 "solid" "red")) (above (rectang le 10 9 "solid" "red") (rectangle 20 5 "solid" "red"))) ;;(define (stack il i2) i1) ;stub ;(@template Image) ; (define (stack il i2) (if (> image-width il image-width i2) (above i2 i1) (above il i2)))