Answer:
108 yards for 27 students
Explanation:
12/3
Step 1: to figure out how many yards it takes to make one costume you have to divide 12 and 3.
12/3= 4
It takes 4 yards to make one costume.
Step 2: to figure out the amount of yards used for 27 students you take 4 yards times 27 students.
4x27= 108