Answer:
4 more students
Step-by-step explanation:
10% of 40 is 4, since the membership went up by 10% it is clear that there are 4 more students that joined the chess club.
10/100*40
=4 more students joined the club
Option B is the correct answer
Answer: A; No, the relation passes the vertical line test.
Hope this helps.
r3t40
