Which of the following expressions represents the distance between -1/4 and 3/4?

A. [-1/4+3/4]

B. [-1/4-3/4]

C. None of the above

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