15x over 2 dont know how to do it on computer
        
                    
             
        
        
        
Answer:
5^8
Step-by-step explanation:
Diego added the exponents. This was an error. If he was simplifying 
5^2 × 5^4, then he could add the exponents and get a correct answer. But his problem had a power raised to a power. In this case, you multiply the exponents to simplify. 
(5^2)^4 means 
5^2×5^2×5^2×5^2
which is 
5×5×5×5×5×5×5×5
which is 5^8.
 
        
             
        
        
        
Answer:
positive is the correct answer
 
        
             
        
        
        
Answer:
+2
Step-by-step explanation:
+ and - cancel. We have 5 + and 3 - so that leaves us with 2 + so the answer is +2.
 
        
                    
             
        
        
        
Find the median of the given data. If the mean is 4.5...
5, 7, 7, 8,x,5,4,3 = x, 3, 4, 5, 5, 7, 7, 8
The median is 5. For the second part... The question is incomplete... “If the mean is 4.5...” Also, I have no idea if x should have been added or not. Even if it was, it doesn’t change the answer.