A positive one because the nagatives cancel out
22+24+26+28+30+32+34+36+38+40+42+44= 396
Answer:
840
Step-by-step explanation:
Given


Required
Determine the number of rankings
The term "ranking" as used in this question implies permutation and the required is calculated using:

Where


So:






<em>Hence, number of ranking is 840</em>
Answer:
true, refer to picture for more understanding :)