Somebody help! How can knowing the opportunity cost of buying a product affect people’s economic decisions?

The rulers of the west african kingdoms expanded their lands by

How did the voting rights act and the 15th amendment combine to improve individual rights for african americans

Select the correct answer from the drop-down menu.during the (scientific revolution, renaissance, industrial revolution), european intellectuals rejected many teachings of ancient scientists promoted by the church. to replace flawed theories, scientists began researching and conducting experiments. they used critical and reasonable thinking to draw concrete conclusions. this also led to the (scientific revolution, industrial revolution, enlightenment). it was an age that focused on using reason for understanding laws of nature and identifying humans' natural rights.