Why were the systems of checks and balances and separation of powers important additions to the Constitution?

Match the people with the appropriate description. vernon and irene castle arthur murray fred astaire willi ninja a. stylized the forms of ballroom dance by incorporating other dance forms b. responsible for renewing the influence of ballroom dance in america c. godfather of vogue danced. responsible for standardization/teaching of steps leading to spread of ballroom dance education

Who coined the phrase “go west and grow with the country”?

Why did federal government use a laissez-fair