He doesn’t know your name because he asks “¿Como te llamas?” That means what is your name.
La semana que viene saldre a Mexico
i think i should just translate?
tengo 19 anos. = I am 19 years old.
mis tienen 14 y 10 anos.=my have 14 and 10 years.
son bonitas.=they are cute
Answer: He developed differential and integral calculus
Explanation: