71+50+6x-1=180
excuse the 121

9 1/3

Step-by-step explanation:

That is wrong i tried to answer it but messed up so don't use it

71+50+6x-1=180

121+6x-1=180

121-1+6x=180

120+6x=180

6x=180-120

6x=60

x=60/6

x=10

so the value of x is 10

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.

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong