I need major help with number 5. Please show the work.

p = 1

Step-by-step explanation:

combine like terms on the right side

subtract 8p from both sides

add 1 to both sides

divide both sides by -7

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.