X f(x) 6 64
7 128
8 256
9 512
10 1024

when x=11,f(x)
when×=12,f(x)
when+=13,f(×)

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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