Suppose you walk 18.0 m straight west and then 25.0 m straight north. (If you represent the two legs of the walk as vector displacements A and B, as in the gure below, then this problem asks you to nd their sum R = A + B.) How far, in meters, are you from your starting point? (Enter a number.) m what is the compass direction of a line connecting your starting point to your final position measured in degrees west of north? (Enter a number.) 0