What is the mean? (I don’t pay attention in class).

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

If you answer right ill give brainliest, : )

Use the graph of the sine function y=2sinθ shown below