Translation of "Responderla" in English

Es un error responderla.

It's wrong of you to talk back to her.

Iba a hacer la pregunta, y a responderla,

I was going to ask the question, and answer the question,

Podemos responderla la próxima semana, de cualquier manera,

We may answer it next week, either way,

La pregunta fue tan difícil que nadie pudo responderla.

So difficult was the question that no one could answer.

En la que planteé una pregunta a mis alumnos y los animé a responderla.

where I asked students a question and I invited them to respond.