What does "y usted" mean in english?

Can u me with this i don’t understand it

Giving 20 points! explain why i is said that the sun never set on the spanish empire.

Your parents want to buy house in another country so the family can spend the summer there. they like to look at a variety of choices, from tall buildings to small detached houses, two ranches. they prefer a vibrant big city. espaba guinea ecarorial argentina costa rica