How did the invention of the electric lightbulb change the america economy

The graph below shows how the price of wheat varies with the demand quantity. suppose that lower production costs increases the supply of wheat, such that more wheat is supplied at each price level. the new equilibrium price (after the increase in supply) is

Use your map on page 347 to find europe (hint: there is a smaller map on the bottom of that page that shows you specifics! ) name three countries in europe. *

Which factor contributed to the rise of african empires such as ghana and mali ? a. their creation and involvement in trade networks b. they focused only on agricultural production. c. they didn’t engage in warfare with other nations d. their geographic location protected them from attacks.