answer:There were various economic systems in place in former principalities, including feudalism, mercantilism, and artisanal specialization. Feudalism gave rise to a manorial economy that was largely self-sufficient and based on agricultural production. Mercantilism, popular in the early modern period, emphasized government intervention in economic affairs and the accumulation of wealth through exports. Artisanal specialization involved the production of goods by skilled craftspeople for local or regional markets. These economic systems influenced trade and commerce by shaping the types of goods produced, the organization of labor, and the relationships between producers, merchants, and consumers.

answer:1. Albert Einstein - physics, theory of relativity 2. Thomas Edison - electrical engineering, invention of the lightbulb 3. James Watson and Francis Crick - biology, discovery of the double helix structure of DNA 4. Stephen Hawking - physics, black hole theory 5. Rosalind Franklin - biology, X-ray crystallography work contributing to the discovery of DNA's double helix structure 6. Neil Armstrong - astronaut and aerospace engineering, first person to walk on the moon 7. Benjamin Franklin - physics and electricity, discovery of lightning and invention of the lightning rod 8. Rachel Carson - environmental science, author of Silent Spring and early advocate for environmental conservation.

answer:Step 1: Begin by writing the quadratic equation in standard form, ax^2 + bx + c = 0. Step 2: Identify the values for a, b, and c in the equation. Step 3: Use the quadratic formula, x = (-b ± sqrt(b^2 - 4ac))/2a, to solve for the roots of the equation. Step 4: Simplify the equation by performing any necessary arithmetic operations. Step 5: Check the solution by plugging the values obtained for x back into the original equation to ensure they satisfy the equation.

answer:Some common themes found in Medieval drama include morality, redemption, salvation, sin, and religious faith.