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What describes horizontal cross section of the right rectangle 6m 8m 5m

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

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =