The main stems
of 38 rivers in the United States are at least 500 miles (800 km) long.
The main stem is "the primary downstream segment of a river, as
contrasted to its tributaries".[1] The United States Geological Survey (USGS) defines a main-stem segment by listing coordinates for its two end points, called the source and the mouth. Well-known rivers like the Atchafalaya,[2] Willamette,[3] and Susquehanna[4] are not included in this list because their main stems are shorter than 500 miles
False
The highest point is located at Mt. Michell, but it is not in Massachuesetts. It is in North Carolina
The polar ice capes, the change in genetics of certain animal fossils (growing more or less hair, etc. etc.)
subtract 8 from both sides leaving
combine -2x+-8x =-10x
divide both sides by ten
