Directions: Use the Design Recipe to write a function revenue, which takes in the number of glasses sold at $1.75 apiece and calculates the total revenue.

Contract and Purpose Statement

Every contract has three parts…​

_______:_______->______

___________________________________________________________

Examples

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

(EXAMPLE (_______ __)__________)

(EXAMPLE (_______ __)__________)

Definition

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

(define (_______ ________)

__________________)

Directions: Use the Design Recipe to write a function cost, which takes in the number of glasses sold and calculates the total cost of materials if each glass costs $.30 to make.

Contract and Purpose Statement

Every contract has three parts…​

____:_______->______

________________________________________________________

Examples

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

(EXAMPLE (____ __)_________)

(EXAMPLE (____ __)_________)

Definition

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

(define (____ ________)

_________________)

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