In Georgia, students must maintain good grades to be eligible to play sports. Each student must meet certain prerequisites the previous semester to join a sports team. In 2009, the Georgia school board made a change that affects middle school students. Before, middle school students had to pass five classes the semester before to play a sport. Now, students have to pass at least 70% of their classes the previous semester before playing a sport. One reason the Georgia school board changed their sports eligibility rule is because different Georgia schools follow different schedules. Some students only take four classes each semester. So, even if they passed every class, they wouldn’t meet the eligibility requirement of passing five classes.

Option 1:

If students take four classes, how many must they pass to pass at least 70% of their classes?

A. at least 1

B. at least 2

C. at least 3

D. all 4

Option 2:

Sierra passed five of her classes, but she did not meet Georgia’s new sports eligibility requirement that students must pass at least 70% of their classes. How many classes must she have taken?