1 yes
2 no chair is used twice
3. Yes first numbers are all different
4 no first numbers repeat
Hope this helps
        
             
        
        
        
Important information:
The string is 8.5 inches long.
1 inch = 2.54 centimeters
How to solve:
Multiply both sides by 8.5 to get 8.5 inches = x centimeters.
2.54 • 8.5 = 21.59
Answer:
8.5 inches equals 21.59 centimeters.
Hope this helps! :)
        
             
        
        
        
Answer: Third option
Step-by-step explanation:
 For this exercise it is important to remember the following:
 1. By definition, the Associative property of addition states that it does not matter how you grouped the numbers, you will always obtained the same sum.
 2. The rule for the  Associative property of addition is the following (given three numbers "a", "b" and "c"):
 
 Knowing the information shown before, you can identify in the picture attached that the option that illustrates the Associative property of addition is the third one. This is:
 
 As you can notice that you will always get the same result:
 
 
        
             
        
        
        
Answer:
wrong the answer is 63.1
Step-by-step explanation:
 
        
             
        
        
        
Given:
A line contains the points R(-1, 8), S(1, 4) and T(6, y).
To find:
The value of y.
Solution:
Three points are collinear if:

A line contains the points R(-1, 8), S(1, 4) and T(6, y). It means, these points are collinear.



Subtract 12 from both sides.

Divide both sides by 2.


Therefore, the value of y is -6.