Over what interval is the function in this graph constant?​

Which expression gives you the distance between the points (5,1)and(9,-6)

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !