How to simplify the radical expression

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 undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling