4 2/3 - 2 1/11 I need help rn

Average acceleration: i have no idea how to do this.

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

Which shows how to solve the equation 3/4x=6 for x in one step?