Referenced from lesson Problem Decomposition

Directions: Use the Design Recipe to write a function profit that calculates total profit from glasses sold, which is computed by subtracting the total cost from the total revenue.

Contract and Purpose Statement

Every contract has three parts…​

; ______:_______->______

; __________________________________________________________


Write some examples, then circle and label what changes…​

(EXAMPLE (______ __)_________________________)

(EXAMPLE (______ __)_________________________)


Write the definition, giving variable names to all your input values…​

(define (______ ________)


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