Aconstruction worker bought several bottles of juice for $3 at the convenience store. she paid for them with a $20 bill. if j represents the number of bottles of juice, write an expression for the change she should receive

The center on a target has a diameter of 5 inches. the whole target has a diameter of 25 inches. complete the explanation for what part of the whole target is the center. the center of the target takes up % of the whole target.