Just say sum dum and u will win

Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country's decision to sell land to another country select the best answer from the choices provide

Do you guys know all the answers to this

The net below can be folded to form a square pyramid.la2419"100what is the surface area of the pyramid? 190.8 square inches| 0 217.8 square inches300. 6 square inches354.6 square inches