20, 18, 21, 18, 22, 24, 18, 23, 23, 24 Explain the meeting of the interquartile range as it relates to the number of students in the kindergarten classes

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?