Select three standard units of the metric system

What country aided north korea in the korean war?

What was the result of delegates from the democratic party not being able to nominate a candidate in 1860

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