Which choices are equivalent to the expression below? 3sqrt5 + 8sqrt5 A. 24 start 5
B. 24 sqrt 10
C. 11 sqrt 10
D. 11 sqrt 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