Acone with radius 6ft and a height of 12ft

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

Look at attachment. has all info needed. need

How do i do this activity, is appreciated