b is decreased by 25% which means there will be (-ve) sign.
<h3>So,</h3>

- <em>Option 5 is correct!!~</em>
Answer:
be brief can't see any picture
There are 400 students in a school. In Zachary's class, 18 out of 30 students participate in after-school activities. Based on Zachary's class, about how many students in the school are predicted to participate in after-school activities?