A bicycle shop sold 55 bikes ones week. The next week they only sold 22 bikes. What was the percent change in the number of bikes they sold from one week to the next? There was a % change in the number of bikes sold

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.