PEMDAS. (-4) - 18 - (12 + 3)
1. Parenthesis, simply what's in them.
(-4) -18 - (15)
2. Combine like terms.
-4 - 18 - 15 = -37
Hope this helped.
In medieval towns, unhealthy living conditions led to the spread of illness. The town were very dirty places. There was no running water in homes, and people used outdoor privies or chamber pots instead of bathrooms, which they emptied into nearby streams and canals.
For the first one it would be <span>labor Unions </span>
The nation is Hungary who opened its borders to Germany