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|?

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?