Help with all of number 9?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Afootball is throw by a quarterback to a receiver

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