Pls answer this question

If 25% of y is 30, what is 60% of y?

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters

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.