Identify the angles of rotational symmetry for the figure. there can be more than one options

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

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

Im literally having a mental breakdown