All of the choices given were invented before 1840 except for the zipper. The zipper was invented in 189. The correct answer is B.
Open ocean I do believe but not sure
Answer:
yes
Explanation:
pick me as the brainliest
When the paramount problem facing Hamilton<span> was a huge </span>national debt<span>. He proposed that the </span>government<span> assume the entire </span>debt<span> of the </span>federal government<span> and the states. His </span>plan<span> was to retire the old depreciated obligations by borrowing new money at a lower interest rate. </span>
