5 f + 2 g + 2 f + 4 g

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.

i think is g(1)=-1.

hope that i can

answer: sherk

step-by-step explanation:

just give up and watch the best anime ever sherk

answer is  

d.

all of the above

hope you get this right