Ernest's dining room is 19 feet wide and 21 feet long. Ernest wants to install wooden trim around the top of the room. The trim costs $0.69 per foot. How much will it cost Ernest to buy enough trim?

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?