How is my father's daughter's mother's only daughter-in-law related to my wife's son?​

As a Mother.

Hope this helps!!

My mother's daughter is my sister.

Explanation:

My sister's father is my father.

you have to tell us what you're talking about or it's impossible to answer.

different strategies reach different people based on their ability to understand the material. (from personal experience) when writing an argumentative essay write explaining the subject as though your audience never heard of it before and it is just being introduced, then explain why other people hate it also, afterward you would explain why that would be wrong. i hope that : )