Whitch equation matches the graph give explanation plz i well make your brain list

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

For what value of (y) is 3^3/3^y =1/9

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2