2/30=0.06 repeated. 0.06=6%. 7% or 6.6% of the 30 families have 4-5 pets.
C- Hexagonal. Basically you just double the sides of the 2d shape to find out the amount of vertices.
Answer:
from the picture the answer is D.
Step-by-step explanation:

to find x subtract 18x from 4x which will give you -14x=-36
divide both sides by -14