The last answer, because the class is being divided into four groups. So the class number is not known, thus it is represented by “w” and divided by four.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Find the 4% of the 2000.
Then, add it to the 2000.
Keep adding the 4% which is 0.8 to the new sum until you get up to the third year and there you go!
Hope this help you!
 
        
             
        
        
        
Answer:
8(3-(-1)) = 32
Step-by-step explanation:
 
        
             
        
        
        
Answer: Yes, the answer is 40 quarters.
Step-by-step explanation:
 1. You need to remember that 4 quarters make a dollar.
 2. Keeping this on mind, you can make a Rule of three, as following: If there are 4 quarters in 1 dollar, how many quarters are in 10 dollars? 
 Then:
 4 quarters-------1 dollar
            ---10 dollars
---10 dollars
 
 3. Therefore, there are 40 quarters in one roll.
 
 
 
        
             
        
        
        
Answer:
YZ= 2.8
Step-by-step explanation:
3n+5=8n-9
-3n -3n
5=5n-9
+9. +9
14=5n
14÷5
2.8=n