How many 1/2's are in 7

14

Step-by-step explanation:

1/2 + 1/2 = 1

so then 2 is 4 halves

4 is 8 halves

8 is 16 halves

the number of halves is double the original number

14

Step-by-step explanation:

7 ÷ 1/2 = 7 × 2

it would be:

c.parallelogram.

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.