Answer:
an = a+4n-4
Step-by-step explanation:
 
        
             
        
        
        
Answer: -3x-5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The least common denominator of the fractions is 24
Step-by-step explanation:
we know that
The <u>least common denominator</u> (LCD) is the smallest number that can be a common denominator for a set of fractions
so
we have
7/8
Multiples of 8 -------> 8,16,24,32,...
5/6
Multiples of 6 -------> 6,12,18,24,...
24 is a common multiple of 6 and 8.  It is their lowest common multiple
<em>Alternative Method</em>
we have


The least common multiple are those common and non-common numbers with the greatest exponent
so

 
        
             
        
        
        
Answer:
It the first one
Step-by-step explanation: