Find mAC⌢. Please Help!

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

Find the area of an equilateral triangle with a side of 6 inches

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