220 * 15% = 33.
The total number of students in seventh grade at Western Middle School = 220
The percent of the students in seventh grade have perfect attendance=15%
Then, the number of students have perfect attendance is given by :
15% of 220
Hence, 33 students have perfect attendance.
33 % had perfect attendance.
i you goofed up when writing this, because hnot is not a word minusf is not either. i cannot answer because of that.