I have a test I'm doing and it makes no sense. Here are some of the questions, and thx for the other answer. -12 = p - 7
-7b = -35
-5/8w = -9
9/25 = p/125
-3a +4 = -14

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.