Answer:
The greatest common factor of 64 and 72 is 8.
 
        
             
        
        
        
The next number in the series is 30.
<h3>What is series?</h3>
It should be noted that series simply means the operation of adding values together in a data set. 
In this case, it can be seen that the numbers are interchangeable between 30 and 31. 
In this case, since 31 was the last number, the next number will be 30.
Learn more about series on:
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Answer:
Sue of estimates = 6200
Step-by-step explanation:
 can be estimated as
 can be estimated as  which is
 which is 
Similarly  can be estimated as
 can be estimated as  which is
 which is 
∴ Sum of estimates = 
 
        
             
        
        
        
Answer:
g or h whichever u think is best
Step-by-step explanation:
 
        
                    
             
        
        
        
21 is the answer.You distribute 6 into the parentheses and you substitute 3 for x so 6(3-1)+9= f(x)=18-6+9 you add all the like terms and the answer is 21