Which of these sentences needs a comma? Dancing was her favorite way to spend a day.
Finally she learned how to dance like her sister.
Final dance numbers included ballet and tap.
She learned how to dance after many classes.

The u.s. government has three branches: executive, judicial, and legislative. each branch plays a different role in making sure laws are passed, enforced, and applied fairly in accordance with the united states constitution. which idea does this scenario best represent?