Instructions for a craft project say that the length of a piece of red ribbon should be 5 inches less than the length of a piece of blue ribbon. How long is the red ribbon if the length of the blue ribbon is 27 inches?

6. sarah saved $12.75 every week for a number of weeks, w. she received an additional $25 during the last week in which she saved money. write and solve an equation to find the number of weeks, w, for which sarah had saved money if she has $114.25 now.