How many times have US coins been debased just since the 1960s?

Iwill be giving 15 points to whoever answers the concept of checks and balances means that each branch of governmenta. has its own powers and responsibilitiesb. is clearly described in articles of the constitutionc. has the ability to correct the other branches in case of an errord. is set up so that in case of constitutional crisis, the governement will continue to operate

What best describes the transportation within cities in the early 1800s

Why were colonial assemblies created and what did they do