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.

36 only use Netflix	71 only use Redbox
15 only use a video store	10 use only a video store and Redbox
60 use only Netflix and Redbox	32 use only a video store and Netflix
8 use all three	15 use none of these

______ people used Redbox.