1) 30°.
2)60°.
3)90°.
4)none of the choices are correct.

ABD is a right triangle. Therefor 30 + 4x = 90.

Solve for x.

4x = 60

x = 15

None of the answers are 15, therefor it is D.

None of the choices are correct.

it 2

step-by-step explanation:

8^1/3=2

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.