What is the greatest common factor of 210 and 252?

Twelve friends shared 8 small pizzas equally.how many pizzas did each person get?

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.