Question: Task 10 (15 points) Write a Python script to check if a given key already exists in a dictionary. Task 11 (15 points) Write a

  • Task 10 (15 points)
    • Write a Python script to check if a given key already exists in a dictionary.
  • Task 11 (15 points)
    • Write a Python program to iterate over dictionaries and prints the keys and values of the dictionary using for loops.
  • Task 12 (15 points)
    • Write a Python function to read and print the first n lines of a file.

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