Answer: The correct answer is B. There is a linear relationship between the number of costumes and fabric. The rate of change is 3.5 yards per costume.
Explanation:
Divide the Fabric yards by the number of costumes:
7 / 2 = 3.5
14 / 4 = 3.5
21 / 6 = 3.5
28 / 8 = 3.5
Since they are all 3.5 yards per costume, the relationship is LINEAR