How do citizens hold representative s accountable for the choices they make?

The christians in jerusalem met in the catacombs for their worship service

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

Which of these innovations led to increased production in american factories in the early 1800s? a. the use of interchangeable parts b. the construction of canals c. the invention of the mechanical reaper d. the availability of electricity