Plz explain this too me

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

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

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.