Please help me for 20 points !!

The system of equations graphed below has how many solutions? y = 2x + 2

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

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?