Find the IQR of this following dataset.
3, 6, 3, 8, 6, 3, 9, 6, 3, 5, 6, 3, 7

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts