Matemáticas ayuda por favor

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

Find the area of the regular hexagon if a side is 20 cm.

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]