Dan picked 7 plums and 6 apples from the orchard. he gave 3 plums to sandy how many plums does he have left?

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.