(define (composed f g)
  'YOUR-CODE-HERE
)

(define (max a b) (if (> a b) a b))
(define (min a b) (if (> a b) b a))
(define (gcd a b)
  'YOUR-CODE-HERE
)

(define (filter f lst)
  'YOUR-CODE-HERE
)

(define (all-satisfies lst pred)
  'YOUR-CODE-HERE
)

(define (accumulate combiner start n term)
  (if (= n 0)
      start
      'YOUR-CODE-HERE
      ))