"My mother and my aunt are teachers."
Translation:Mi mamá y mi tía son maestras.
Is the second "mi" necessary? In English we can leave it out, is it the same in Spanish? I was marked wrong.
Yes and no, even though you can leave it out it sounds kinda weird, but is correct whatsoever
Reported: Mother means madre and Mom/Mum means Mamá. Also in Spain we use profesor/a to say teacher.
Why can't one use estan? The duolingo explanation says to use ser for permanent conditions, estar for temporary.
I would say it is a helpful oversimplification. Sorta like "i before e" is a great oversimplification.
in an earlier lesson, i used "y" as the conjunction and it told me it should be "e", why is "y" correct here/
It's normally "y"; it's only "e" if the next word begins with an "i" sound, such as "hija" does.