Percent increase and decrease

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

5/6+7/8what is the answer sealsdbdbshd

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2