Two airplanes have left the dallas airport. one airplane is 140 miles west of the airport and has an altitude of three miles, while the other airplane is 90 miles east of the airport and has an altitude of two miles. what is the distance between these two airplanes

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.