The maps show the predicted decline of permafrost in Alaska. study the maps and then complete the passage

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)

The incident command system (ics) is: a. most applicable to the management of complex incidents that extend over many hours or days. b. a military system used in domestic incidents to ensure command and control of federal resources. c. a standardized management tool for meeting the demands of small or large emergency or nonemergency situations. d. a relatively new approach created based on the lessons learned from hurricane harvey disaster operations.

All of the following occurred due to the invention of the railroad except