Evaluate the Expressions 1)2+(-4)-10-10 2)7 · 2-6/-1 - -5 (fraction)
3) (4+5-4)(3+6)+3

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