Answer:
D
Step-by-step explanation:
Negative numbers are less than zero.
Answer: Choice C.
and Choice E. 
Step-by-step explanation:
Algebraic exponents.
Answer:
-18, |-17|, |-18|, |19|, 20
Step-by-step explanation:
the absolute value of -17 is 17, the absolute value of -18 is 18, and the absolute value of 19 is just 19. Absolute values are never negative.
Hope this helps!