Joe’s cell phone costs him 21$ per month plus 3.75$ for every 1GB of data download. What is the limit to the number of GBs he can download to stay within his monthly budget of 60$

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?