(Check SSN) Write a program that prompts the user to enter a Social Security number in the format ddd-dd-, where d is a digit. Your program should check whether the input is valid.
Sample Run 1
Enter a SSN: 232-23-5435
232-23-5435 is a valid social security number
Sample Run 2
Enter a SSN: 23-23-5435
23-23-5435 is an invalid social security number

What is the most popular genre of video games?

Representa os dados de um banco de dados como uma coleç? o de tabelas constituídas por um conjunto de atributos, que definem as propriedades ou características relevantes da entidade que representam. marque a alternativa que representa o modelo descrito no enunciado. escolha uma:

Which of the following is not a way in which trees benefit the environment? a. they remove a significant amount of carbon dioxide from the atmosphere. b. they remove a significant amount of oxygen from the atmosphere. c. their roots hold soil in place, reducing rates of erosion. d. they remove ozone and particulates from the atmosphere. select the best answer from the choices provided a b c d