Which of the following quadratic equations has the solution set {−20,9}?

A. x^2 - 9x + 20 = 0
B. x^2 - 11x + 180 = 0
C. x^2 + 11x - 180 = 0
D. (x + 20) (x - 9) = 0
E. (x - 20) (x + 9) = 0
F. (x - 5) (x - 4) = 0

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=