24% of the books on david's shelf are mysteries. there are 36 mysteries on the shelf. choose the expressions that complete each step involved in setting up and solving the proportion that represents the situation.

The chart below shows the distribution of weeds in yard

Find the area of the unshaded square

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