Answer:
20 students
Step-by-step explanation:
In order to find the answer, we must find 2/3 of 30 students.
2/3 of 30 students can be found by multiplying the two numbers together.
2/3 * 30 is equal to 2/3 * 30/1
2/3 * 30/1 is 60/3
60/3 is equal to 20
20 students brought their attendance contracts back on Tuesday.
