Answer:
You'll have to give more information about the question or about what you need solved.
Step-by-step explanation:
D, because there are several students that are in your school. There would be many different answers.
Answer:
12
Step-by-step explanation:
4*x-9=2x+15
4x-9=2x+15
-2x -2x
2x-9=15
2x=24
x=12