I have the answer in this picture. But im not sure if this might be really what your asking for.
Answer:
A. line symmetry only.
equilateral triangles have 3 lines of symmetry
Answer:
If M is the midpoint, then LM = MN
3x - 2= 2x +1
x = 3
So LM = 3x - 2 = 9 -2 = 7
LM = 7
New York has a density of millionaires more than twice that of the country as a whole. The density of millionaires is about the same for New York City as for the United States. Millionaires seem to prefer New York City to much of the rest of the United States. There is something in the water of New York City that encourages millionaires