What was a major similarity between Charlemagne and William the Conqueror regarding their kingdoms?

Use the drop-down menus to answer the questions. which group contributed about half its income in taxes? the aristocracy paid of its income in taxes.

What is the framework that citizens create so there is order in society?

Profits are maximized when marginal revenue and marginal costs are a. set c. equal b. less than market price d. greater than market price