Which statement is modeled by the expression?

150/k

the henderson family drove 150 miles each day of their vacation. if their vacation lasted for k days, then 150/k is the total number of miles they traveled on their vacation.

the cafeteria has a capacity of 150 seats. if k is the number of people in the cafeteria at lunch time, then 150/k is number of seats that were not used at lunch time.

a librarian had 150 books to be placed on shelves with an equal number of books on each shelf. if k is the number of shelves to be used, then 150/k is the number of books on each shelf.

cory had 150 dollars in his savings account. he withdrew k dollars to buy a catcher's mitt. he then had 150/k dollars left in his savings account.