Here’s the verbiage from one school:
“We will use the highest GPA that is sent to Admissions from your official high school transcript. In most cases this is the weighted GPA.”
Not sure the purpose of your questions.
Schools will do what they will do. Some use unweighted. Some use weighted and all weighting systems are different. Some use core classes. Some use all. And what some say are core may not be core at another school.
Bottom line - you will be in the same evaluation as all other candidates a school evaluates.
So why the concern ?