Compute this 6-7-3+10-2

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis. how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out