How were the allied troops able to defeat the german advance at the battle of the bulge

What clause(s) expanded the power of the executive branch, especially relating to foreign policy?

How did the completion of the transcontinental railroad change the lives of american citizens? a-it increased the wealth of all americans and enabled them to travel more.b-it made cross-country travel too expensive for ordinary americans.c-it decreased the safety of americans who moved to settle the plains.d-it shortened travel time between the east and west for all americans.

Soon-yi's house has a hexagonal window made up of six identical equilateral triangles as pictured below.