Which movie has an interquartile range of 11 years?

Ineed to learn how to solve this problem

What are the coordinates of the point is 1/4 of the way from a (-6, -3) to b (6, 1)? a. (-3, -2) b. (0, -2) c. (-1, 0) d. (3, 2)

If eh = hg and hg=16, find the diameter of k