Which type of punctuation should go in the blanks?

Jessica _ Brittany's younger sister _ was always causing mischief.

Which type of punctuation should go in the blanks?

When the car was finally delivered _ nearly three months after she ordered it _ she decided she no longer wanted it.

Which type of punctuation should go in the blanks?

My great grandfather _ born in 1917_ is turning 100 this year.

Which part of the following sentence is the "extra information" that requires punctuation (either commas, dashes, or parentheses)?

Our cat a tabby named Princess loves to lay out in the sun.

Which type of punctuation should go in the blanks?

Our cat _ a tabby named Princess _ loves to lay out in the sun.