What happens if the user enters a negative number?

You currently have the cost in US dollars and need to convert the prices to the Australian dollar. Write a 2-part program using Ruby, Java, or Python. Part 1: Write a function to gather the following costs from the user: Travel Cost: $9,800 Hotel Cost: $3,500 Rental Car Cost: $1,600 Labor Cost: $15,500 Part 2: Write a function to convert the costs from United States dollar (USD) to Australian dollar (AUD). Note: Look up the current USD to AUD exchange rate to use in your function. Test the program 3 times by providing different costs in USD. Provide the code and take a screenshot of the output, then paste the screenshot(s) into a Microsoft Word document. Write a half-page response in the same Microsoft Word document to address the following: Provide a manual for the user explaining how to use the program. Explain what type of user input validations you should have. What happens if the user enters a negative number? What happens if the user puts a $ in the input? Review the readings for this week from Ruby on Rails Tutorial or the Pluralsight videos if you have additional questions on deploying Ruby applications. S