Answer:
4th one
Step-by-step explanation:
 
        
             
        
        
        
In division, exponents with the same base are subtracted. 
example: 
 
 
        
        
        
Answer: 3 inches 
Step-by-step explanation: 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
) Nth term = F + (N - 1) x D, where F=First term, N=Number of terms, D=Common difference
6th row = 23 + (6 - 1) x -3
             = 23 + (5) x -3
             = 23 + (-15)
             = 8 - number of boxes in the top row.
  
b) Sum = N/2[2F + (N - 1) x D]
             = 6/2[2*23 + (6 - 1) x -3]
              = 3  [46  +    (5) x -3 ]
              = 3  [46  +      -15 ]
              = 3  [ 31 ]
              = 93 - total number of boxes in the entire display.
 
        
             
        
        
        
Answer:
2.5
Step-by-step explanation:
-2+5 equals 3-8= -5 divided by 2 equals -2.5
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