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…​


________ (_)__ is ____________________

________ (_)__ is ____________________



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

fun ______(_______):



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