What is the product? (5r − 4)(r2 − 6r + 4) 5r3 − 34r2 + 44r − 16 5r3 − 4r2 + 14r − 16 5r3 − 6r − 16 5r3 + 10r − 16

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.