math
posted by star on .
Which of the following is a subset of set A?
A: {children between the ages of 3 and 7}
a.children over 7
b.children3 years old
c.children of all ages
d.children under 3

Are children over 7 included in children 3 to 7?
Are 3yearolds included in that group?
Does the group include children of all ages?
Does the group include children under age 3?
We'll be glad to check your answer.