Answer:
C. 5
Step-by-step explanation:
2 - 5 + 4 - 6 - 2 + 12
2 + 4 + 12 - 5 - 6 - 2
18 - 5 - 6 - 2
18 - 13
5
 
        
                    
             
        
        
        
-14x + 14 = 8
 A hot-air balloon has an 8-foot diameter that is changing at a rate of 14 foot per minute. How long in minutes, x, will it take until the balloon has a diameter of 14 feet?
 We observe that when we clear x we have:
 -14x = 14-8
 -14x = 6
 Which means that the balloon will not reach a diameter of 14 feet
        
                    
             
        
        
        
Answer:
The inequality is 
Step-by-step explanation:
Given : Lionel plays trumpet for a minimum of 45 minutes on the days that he practices. If x is the number of days that Lionel practices and y is the total number of hours he spends practicing.
To find :  Which inequality represents this situation?
Solution :  He plays trumpet for a minimum of 45 minutes

If x is the number of days that Lionel practices then he practices for at least 
 hours
 hours
y is the total number of hours he spends practicing
So, the inequality form is:

i.e, 0.75x is greater than y.
 
        
                    
             
        
        
        
The midpoint of these two points is (-1, 8). 
In order to find the midpoint, you must take the average of each part of the coordinates. You do this by adding them together and dividing by 2. We'll start with the x-coordinates. 
(-1 + -1)/2 = -1
Now we'll use the y-coordinates. 
(10 + 6)/2 = 8
This gives us the ordered pair of (-1, 8)