Answer:
80 students of 9th grade were suspended
Step by step solved:
If Mr. Clark suspended 2 out of every 5 students in the 9th grade, then the fraction of students who were suspended is 2/5. To find the number of 9th grade students who were suspended, we can multiply this fraction by the total number of 9th grade students:
2/5 * 200 = 80
Therefore, 80 9th grade students were suspended.