To respect everyone and to help elderly people

i would try to the absolute best

I would help the person with the work and if they get stuff wrong, I would correct them.

i would replace the person and explain to the group that they should help with the project, because it is irresponsible of us to let someone do  a project by themselves, because it might be a group project, but either way we cannot depend on other people to do a task or project for us. Sine it is also unfair to the person.

Split the remaining writing tasks in half so he/she doesn't feel like the work is a burden to them

I will tell the teacher