I think the answer to that is A
Answer:
21
Step-by-step explanation:
From the given statements, we know that ![z=6.](https://tex.z-dn.net/?f=z%3D6.)
Therefore, substituting this in, we have
![z+15=6+15=\boxed{21}.](https://tex.z-dn.net/?f=z%2B15%3D6%2B15%3D%5Cboxed%7B21%7D.)
All you have to do is think about the rounding table. it goes from one to 1000. take 5 and put it in the 1 area and go up to the tenth section. you should find your answer then