6.1:  1, 5, 9, 15, 23, 26, 29

6.2:  1, 3, 9, 13, 28, 34, 39, 41

6.3  (no hwk)

6.4:  1, 3, 9, 11

6.5:  3, 7, 11, 17

6.6:  1, 5, 9, 11, 17, 19, 27, 43, 45, 49

6.7:  1, 3