A survey was given asking whether they watch movies at home from Netflix, Redbox, or a video store. Use the results to determine how many people use Redbox.

53 only use Netflix	59 only use Redbox
25 only use a video store	20 use only a video store and Redbox
41 use only Netflix and Redbox	39 use only a video store and Netflix
8 use all three	18 use none of these

_____ people used Redbox