Can medication be produced at 65% accuracy?

What signals you that factoring by grouping is the best method to use when factoring a problem?

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

I’m still confused on how to work the percentages