Requirement:

- In Python

1) Charge Account Validation Write a program that reads the contents of the charge accounts tot ile (located in the Chapter 7 section of elearn) into a list. The program should then ask the user to enter a charge account number. The program should determine whether the number is valid by searching for it in the list. If the number is in the list, the program should display a message indicating the number is valid. If the number is not in the list, the program should display a message indicating the number is invalid 2) Name Search Write a program that reads the contents of the BoyNames.txt and the GirlNames.txt into two separate lists. The user should be able to enter a boy's name, a girl's name or both and the application will display messages indicating whether the names were among the most popular Files located in the Chapter 7 section of elearn. 3) Population Data Use the file called USPopulation.txt. Read the file's contents into a list. The file contains the midyear population of the US, in thousands, during the years 1950 through 1990. The first line contains data for 1950, the second line contains the population for 1951, etc. The program should display the following data: The average annual change in population during the entire time period The year with the greatest increase in population during the entire time period The year with the smallest increase in population during the entire time period