they are asking. What is your friends email address?
"Tu es la ..." means "you are the ...". "Tu es là" (accented "à") means you are here.
Tu es magnifique means "you are gorgeous / you are magnificent" in English.
Tu es d'accord? in French is "Do you agree?" in English.
Tu es de Paris means you are from Paris.
Mi correo electronico es... abcdby@mail.com
cual es tu correo electronico = what is your email-address You could simply give your email-address, or preface it with: 'Mi correo electronico es....' = 'My email-address is....'
Cual es su correo electronico?- formal way me pasas tu email? -informal way
they are asking. What is your friends email address?
What is your best [female] friend's e-mail.
Which is you're best friends email address?
They are asking for your email address, you can answer by either giving it to them of refusing to do so.
Translation: What is your best friend's e-mail.
What is your email.
They are asking .. "what the e-mail adress of your best friend?"x
Cual es tu telefono = What is your telephone number
cual es tu apellido means what is your surname so you would with respond with your last name.