Jynessa wants to order these fractions: 4/9, 2/3, 1/6, -2 1/2 what should she use as her common denominator?
a)6
b)9
c)12
d)18

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