Answer:
D
Explanation:
i hope this is correct but I think it is. Good luck!
Answer:the powers that are not specifically assigned to the federal government
Explanation:
New Orleans or Louisiana.
Answer:
Well based on the fact that the very first patented rock crushing machine was made in the year 1830, and the first successful, Eli Whitney Blake's, was in 1858, I'd say the development process was around 30 years.
I think it D.
i hope this helped!