21. A student wishes to know whether or not there is a sufficient number of parking spaces
for students at his high school. He designs a
survey and seeks to ask a representative
sample of the student body. Which of the
following would be the best sampling design?

g

step-by-step explanation:

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

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.