Help plss i don’t understand this

Beth took out a $20,000 loan for college she is borrowing money from two banks. bank a charges an interest rate of 8.5% bank b charges and interest rate of 10.5% after one year alice owes $1860 in interest how much money did she borrow from bank a

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

This is about circle theorems. someone asap : (