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.
Based on this map, the following statements is true
Most of the agriculture in North America is located in the central United States.
The majority of agriculture in the United States is located in the Southwest.
Answer:
Roughly 40 percent of Americans lived in cities, and the number was climbing. These large city populations caused crime rates to rise, and disease to spread rapidly. As a result of unsanitary living conditions, diseases such as cholera, dysentery, and typhoid fever struck urban areas with increasing frequency.