Answer:
30.5
Step-by-step explanation:
 
        
             
        
        
        
Answer: -4
Step-by-step explanation:
3x + 4 = -8
3x= -12
x = -4
<!> Brainliest is appreciated! <!>
 
        
                    
             
        
        
        
Answer:
127
Step-by-step explanation:
A whole number is a number without any fractions (or decimals), so you just have to round the number to the nearest number without any decimals, which is 127
 
        
                    
             
        
        
        
The cost of one book = $ 6 7 
Number of books = 1 0 2
The cost of 102 books = $ 67 × 102
 = $ 6834 
 
Therefore, cost of 102 books = $ 6834