The owner of a photocopy store applies 5 cents charges per photo copy. There is an extra setup fee for each photocopying job which is about 2.5$. The store revenue from selling x copies is: revenue = 0.05x + 2.5 If it costs the owner 3 cents per copy, write a Python program that reads a text file which contains the sales of each day during a period of time then determines the total revenue, cost and profit over this period of time. (Profit = revenue-cost). - The number of records should be at least 10;

The owner of a photocopy store applies 5 cents charges per photo copy. There is an extra setup fee for each photocopying job which is about 2.5$. The store revenue from selling x copies is: revenue = 0.05x + 2.5 If it costs the owner 3 cents per copy, write a Python program that reads a text file which contains the sales of each day during a period of time then determines the total revenue, cost and profit over this period of time. (Profit = revenue-cost). - The number of records should be at least 10;

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Variables and Constant

Constants and variables are widely used in mathematical equations and expressions. They are also commonly found in the domain of programming, where each language has its own way to differentiate between a constant and a variable. Since they have all sorts of applications, knowing their differences is a good place to start.

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