Think about what 9 is as a square root:

The answer which is closest to this is closest to 9.
Answer: Any two polygons are similar if their corresponding angles are congruent and the measures of their corresponding sides are proportional: In the figure above the ratio or the scale factor of the quadrilateral to the left versus the quadrilateral to the right is ½.
Step-by-step explanation: This what I could coem up with. Hope this helps !!
Answer:
K=5
Step-by-step explanation:
1.) -4
2.) Parenthesis, so probably 1+1
I could be wrong. Sorry XD