What is the measure of Angle A

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

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Pls the last one and it has to be like number 6