Question: finish these methods in Scheme please a) ; Returns true if the profit of a given sale record is a positive number, false otherwise ;

finish these methods in Scheme please

a) ; Returns true if the profit of a given sale record is a positive number, false otherwise ; (isProfitPos '(3 ("10/13/2010" "10/20/2010") (261.54 0.04 -213.25 38.94) ("Regular Air" "Nunavut") "Eldon Base for stackable storage shelf, platinum")) -> #f

(define (isProfitPos sale) ; TODO: Fill this in 0 )

b) ; Returns a triple consisting of the orderNum, profit, and product information out of a given record for a sale. ; (getProv '(3 ("10/13/2010" "10/20/2010") (261.54 0.04 -213.25 38.94) ("Regular Air" "Nunavut") "Eldon Base for stackable storage shelf, platinum")) -> (3 -213.25 "Eldon Base for stackable storage shelf, platinum")

(define (getSummary sale) ; TODO: Fill this in 0 )

c) ; Returns a triple consisting of the orderNum, orderDate, and shipDate information out of a given record for a sale. ; (getProv '(3 ("10/13/2010" "10/20/2010") (261.54 0.04 -213.25 38.94) ("Regular Air" "Nunavut") "Eldon Base for stackable storage shelf, platinum")) -> (3 "10/13/2010" "10/20/2010")

(define (getDatesSummary sale) ; TODO: Fill this in 0 )

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