Flying against the wind, a jet travels 6096miles in hours. Flying with the wind, the same jet travels 5000 miles in 4 hours. What is the rate of the jet in still air and what is the rate of the wind? help?

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