Joey made 300 greeting cards. he sold 40% of the cards, gave 85% of the remaining cards to him friends, and kept the rest of the cards for himself. how many greeting did he keep for himself?

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?