Roy purchased different cardboard pieces that had the same ratio of the length to the width. The table below shows the length and width of some cardboard pieces Roy bought: Length (inches)

Width (inches)

6 5
12 10
18 15
24 20
? 25

Given a = {(1, , 5)(6,4)}, b = {(2,0)(4, ,5)(0, 0)) and c = {(1, 1)(0, 2)(0, 3)(0, ,5)}, answer the following multiple choice question: from the list of sets a, b, and c, state the domain of set b. domain of set b: {0, 6,5} domain of set b: {2, 4,-4, 0} set b does not have a domain