What allowed currency in the ancient world to work as a tool for the exchange of goods? It represented an agreed-upon value.
It represented an amount of available resources.
It was used as a standard measurement of goods.
It demonstrated how much people would pay for a product.

Which is one reason many african nations have not prospered after gaining independence from european colonial powers? a. colonial powers sent their weakest economic advisors to the new countries, and their recommendations were flawed. b. independence left them with weak economies, and many countries have been unable to overcome or recover from these burdens. c. the desert region of the interior is inhospitable to foreign investors, and business interests focused on the coastal mediterranean cities. d. the money endowed upon independence is still tied up in the bank of england, which is hesitant to make loans to struggling nations.