A man lent out $9600 partly at 14% simple interest. His total income after 1.5 years was $1800.00.Find the sum lent at different rates?

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?