The answer is 5 and 18. This is because 5 times five is 25. 25 minus 7 is 18.
        
                    
             
        
        
        
To solve for the given problem above:
Let x be the number of boxes left after 3 hours
3 * ½ X = 24
3/2 X = 24
X = 24 * 2/3
X = 16
The correct answer is 16.
 
        
                    
             
        
        
        
Answer:
Ok, first in our series we can see two numbers in the Sigma, one bellow 0, and other above, 4.
This means that the value of k will go from 0 to 4, then all the numbers in the sum are:
(-1/2)^0 + (-1/2)^1 + (-1/2)^2 + (-1/2)^3 + (-1/2)^4
So we have 5 terms in our series.
b) to see the sign in each term, we must solve the powers, remember that:
(-1)^n is -1 if n is odd, and is equal to 1 if n is even, so we have:
(-1/2)^0 + (-1/2)^1 + (-1/2)^2 + (-1/2)^3 + (-1/2)^4
= 1 -1/2 + 1/4 - 1/8 + 1/16.
So the sign in each term of the series alternates.
 
        
             
        
        
        
This type of question I found on Brainly. But I would recommend to download course hero! 
This type of question I found on Brainly. But I would recommend to download course hero! There is so many different subjects and  answers too. But I hope it's will be helpful. :)) 
 
        
                    
             
        
        
        
Answer:70
Step-by-step explanation: