17. At 1614 your GPS position is LAT 37°01.6'N, LONG 75°31.7'W. At 1703 your position is LAT 36°57.0'N, LONG 75°41.0'W. What was the course made good between the fixes?

The course made good was 238T, determined by calculating the departure and difference in latitude between the two positions, then using these values to compute the angle of the track as S 58 W, which converts to 238 true.