How many solutions do these have? ?y=4x+3; 2y-8x=3 1 2 infinitely many none x-4y=12; 5x-20y=60 1 2 infinite none y-7x=-14; 7y-49x=-2 1 2 infinitely m

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.