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.