Dark matter makes up about 27% of the universe.
The geography of places is influenced by the degree to which humans have impacted their local environment. Movement: Humans Interacting on the Earth. ... This movement is inherently geographic, whether it is by telecommunications or ship. Regions: How They Form and Change. The essential geographic feature is the region.
Answer:
-52 and 1/2 or just -52.5
Explanation:
1/3x=-18+1/2
1/3x = -36/2+1/2
1/3x = -35/2
x= -35/2 / 1/3
x= -52 and 1/2 = -52.5