Tristan is having a birthday party. He doesn’t want anyone less than 10 years old to come to his party. If y equals age in years, which number sentence expresses his age requirements?

A. y < 10

B. 10 = y

C. y 10

D. 9 > y

Please make sure you've copied all parts of the problem and answers correctly. I don't think any of the answers are right.

To determine the number sentence that expresses Tristan's age requirement, we need to understand that Tristan doesn't want anyone less than 10 years old at his party.

The correct number sentence is one that represents Tristan's age requirement as being older than 10. Therefore, the correct option would be

C. y > 10.

This number sentence states that y (the age) should be greater than (>) 10, which fulfills Tristan's requirement.