Descending Order:
a. 15, 8, 0, -2, -3, -5
b. 23, 12, 7, 6, 0, -11
c. 12, 11, 5, -1, -21, -31
d. 98, 56, 4, 0, -35, -53
Ascending (increasing) Order:
a. -333, -210, -26, -8, 0, 21, 33, 85, 2011
b. -8, -5, -1, 0, 4, 5
c. -7, -6, -3, 0, 2, 3, 4
d. -7, -3, -1, 0, 3, 8, 17
e. -10, -7, -6, 5, 6, 19