In which situations would you use an environment variable in software development?

Hello! Any help with this question would be great appreciated! If you could include screenshots on the code I would really appreciate it! Thank you!! Write Python code that: Two prices have already been assigned in a program. If price_1 = 35799.19 and price_2 = 42539.57, write a statement to store the sum of these prices in a 3rd Then print this sum in currency format with a comma to indicate thousands, two decimal places, and the $ sign immediately before the first digit in the total.

For this assignment, please write at least 300 words on the reviewing and reflecting on the knowledge you have gained out of this Object Oriented Development course by answering the following questions: What experience you have gained out of this course. How the participating with weekly class activities assist you in understanding the subject matter? Are there any other topics should be covered in this course?

Object-oriented design should be used when it makes sense to do so. Structured design is the right choice when the situation calls for it. Why does this kind of thing happen, etc.

In the software system design process, there are a plethora of variables that need be considered.

To get the most out of object-oriented design, it's important to structure your workflow so that you can devote more time to modeling and less to procedure. Just one argument must convince me.

Object-oriented design needs to be used whenever it makes sense to do so. Structured design is a choice that can be used when the situation calls for it. what might be making this happen, etc.

There are numerous distinct models that may be used in software development, and each model may be more or less relevant depending on the application. Please classify those models into categories based on how well they suit your own tastes.