What is the value of x (2x+2)

15 points ! ~ see if you know the answer to both you!

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

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?