Answer:
Here's an example of how you could write a program in Python that reads the contents of a file named "charge_account.txt" and checks if a given charge account number is in the list:
Step-by-step explanation:
# Open the file for reading
with open("charge_account.txt", "r") as file:
# Read all the lines in the file
charge_accounts = [line.strip() for line in file.readlines()]
# Ask the user to enter a charge account number
charge_account = input("Enter a charge account number: ")
# Check if the charge account number is in the list
if charge_account in charge_accounts:
print("The charge account number is in the list.")
else:
print("The charge account number is not in the list.")