posted by Jackie .
John delivers newspapers he makes $5 the first week and $2 are added to his pay each week he delivers papers. Which expression could be used to find out how much he would make in a given week, w, after the first week?
you know it's going to involve a +2w somewhere, because he gets $2 more each week.
So, that only leaves A as the logical choice, and it fits because he starts out with 5, and for each w gets 2 more.