What is the interquartile range of this set of data? 15, 19, 20, 25, 31, 38, 41. a.6 b.13. c.19. d.26

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Which number completes the inequality? 2/3 < _ < 7/9