9514 1404 393
Answer:
   21.  D
   22.  C
Step-by-step explanation:
21. The expansion of the given expression is ...
   
__
22. The least likely team to make the championship game is the one with the lowest probability.
   3/8 < 1/2 < 2/3 < 4/5
The Bulldogs are least likely to play in the championship game.
 
        
             
        
        
        
Answer: 
Step-by-step explanation:
According to the cosine rule

Here, 
Putting values

So, the ship turns by  north of west
 north of west
 
        
             
        
        
        
11.90 rounds up to 12, which is the nearest integer.
5.49 rounds down to 5.
7.09 rounds down to 7.
8.5 rounds up to 9.
-2.2 rounds down to -2.
 
        
             
        
        
        
Answer:
x=141
Step-by-step explanation:
(n-2)•180 = Sum of all the interior angles
n = # of sides
(7-2)•180
5•180
900= Sum of all the interior angles
Add all the angles and equal them to 900
125+122+131+x+7+x+107+x-15=900
Add all the numbers up first on the left side
477+3x=900
3x=423
x=141
 
        
             
        
        
        
Answer: 26.67
Step-by-step explanation: multiply 20 and 4/3