Being in the 68th percentile means Anthony did better than 68% of students.
100% - 68% = 32%
So 32% of the students did as well or better than Anthony .
There are 125 students in class, so to find the number than encompasses this 32% you’ll have to do this:
(32/100) * 125 = 40 students
Approximately 40 students did as well or better than Anthony. Okay