What is the absolute value of 39

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.