How do i have 29% in a class while i have a 100 a 0 and 29 which equals 129 divided by 3 which equals 63.333

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?