Strong metal tools allowed bronze afe farmers to grow surpluse crops and trade them with neighbors for goods such as tools . the farmers needed a method for recording their exchanges and keeping track of how much surplus they had left.

Why is the federal reserve managed under the oversight of the federal government? the fed is responsible for printing and coining money.the fed is responsible for collecting income taxes.the fed is responsible for the government’s money.the fed is responsible for paying off government debt.(the first option isn't correct i tried that one)edit: the answer is the fed is responsible for the government’s money.