I'm not quite sure where to start, and answers would be appreciated ! : )

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

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog

Solve the equation. 2x - 8(x+1)= 6(2x - 3)