Geometry,, help pls!

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

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

Factor the polynomial. b^2 + 4b + 4