i need help asap with part f to divid 9 over 12 by 2 over 12 answer this qestion : how may sets of 2 over 12 are in 9 over 12 ? use model representing fraction 9 over 12 to help awnser the qestion

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.