1) Suppose that |a+b| + |b+c| + |c+a| = 20. What is the maximum possible value of |a-b|?

2) Suppose that |a - b| + |b - c| + |c - d| + ... + |m-n| + |n-o| + + |x - y| + |y - z| + |z - a| = 20. What is the maxim possible value of |a-n|?

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