Can someone me with the bottom section?

Which of the following would represent the sum of 3 consecutive integers if x is the first integer?

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

For the inequality |c| < |d| to be true, which of the following must be true?