Answer:
Step-by-step explanation:
 
        
                    
             
        
        
        
I'm assuming that x is part of the data set, and, with x, the mean equals 105. To find the value of x, you must add all the data values together to get 544+x (you still don't know what x equals). Then put 544+x over how many days values there are, including x (there are 6). You should have 544+x/6. Now, as this is how you would calculate the mean if you knew what x was equal to, you must set it equal to the mean, since you know what it is (105). You should now have 544+x/6 = 105. You have your equation set up--now you just have to solve it. I would multiply by 6 on both sides to get rid of the 6 on the left side. You would then have 544+x = 630. I would finally subtract 544 from both sides to get x = 86. Your final answer is x = 86.
        
             
        
        
        
For # 1, the answer will be 1 because of the exponential rule 

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#2, the answer is going to be 

 because of the exponential rule 

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#3. I'm not sure that this could be simplified any further.
#4  To get the answer to this question, we must apply the distributive property, along with the exponential rule 
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. When we apply these properties, we'll get 

For the other questions, they all apply the Laws of Exponents. 
 
        
        
        
Since, 8 and 5 both are prime numbers u can simply multiply 8 and 15 to get your answer..
the ans is 120..
 
        
             
        
        
        
Answer:
C
Step-by-step explanation: