" she is" in Spanish
How would you possibly pass a ninth grade Spanish class when you don't really know English?? And at a very credential time at the end of the year for finals
She is could be ella es or ella está or ella esté or ella sea.
Since you're just beginning your language study, a good rule of thumb is always provide as much context as possible when asking how to translate something. In this case that would mean using "she is" in a complete sentence.
sí. ella es. mamasita_n tiene razón.