Lincoln Elementary School has 120 students. Of these 120 students, 2/5 ride the bus to school and 5/12 have a parent drive them to school. If the rest of the students walk to school, what fraction of students walk to school?

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 ̊ and to the other is 52 ̊. how far apart are the cars?