de dónde es usted?
Tu es de Paris means you are from Paris.
De quelle nationalité es-tu? = What nationality are you?
"Es de" has a few meanings in Spanish. In one definition, it can mean "it is" or "it is of." Another definition of "es de" is "he/she is from." This expression is used when describing where a person is from. For example, "She is from Spain" would be translated to "Ella es de España."
"¿Quién es de todos?" would mean "Who is from all?"
"Es de roma" in Spanish means "It is from Rome."
Translates to mean Rosa is from Spain.
If you mean: 'De donde es Vd (=usted)?': 'Where are you from?', the answer is: 'Soy de....' ('I am from....') If 'od' in the question is not 'Vd/usted', it could mean: Where is he/she//are you from? OR (doubtfully): Where is od from?
es una clase de matematicas means is a kind of mathematics
"es cosa de dos" = "it's a matter between two"
¿De dónde es Penélope Cruz? --- Where is Penélope Cruz from?
"Es clases de español" translated to English means "It is Spanish classes."