Ellie and Erik each have 20 pennies. Ellie puts her pennies into 4 equal groups. Erik puts his pennies into 5 equal groups. Who has more pennies in each group? Explain

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π